ABAC
MIL-DTL-38999 Series III
Belief in Technology
+44 (0) 1443 740331 www.ttabconectors.com sales@ttabconnectors.com
www.ttelectronics.com
© AB Connectors Ltd 08.11 AB Connectors
AB Connectors Limited Abercynon, Mountain Ash, Rhondda Cynon Ta , CF45 4SF
35
ABAC
Global Sales O ces
Email: sales@ttelectronics-na.com
North America
Email: sales@ttelectronicseurope.com
Europe
Email: sales@ttelectronicsasia.com
Asia
TT electronics Clive House, 12-18 Queens Road, Weybridge, Surrey, KT13 9XB, UK
www.ttelectronics.com Email: info@ttelectronics.com
2ABAC
Contents
03 Company Profi le
04 About TT Electronics
06 Technical Information
08 Part number explanations
09 Orientation
10 Insert Arrangements
11 Insert Arrangement Specifi cation
14 Receptacle Type 20 / Receptacle Type 24
15 Inline Receptacle Type 12 /
Box Mounting Receptacle Type 13
16 Wall Mounting Receptacle with pcb stand-off Type 14
17 Jam Nut Receptacle with pcb stand-off Type 15
18 Bulkhead Connector Type 11 /
Recommended Jam Nut Torque Values
19 Fixed Connector with PC Tails
20 MIL-DTL-38999 Plug Type 26 /
MIL-DTL-38999 Integral Backshell Type 37
21 Mated Connector Dimensions / Panel Cut out Information
22 Straight backshell for band termination & heat shrink
boot
23 Right angle backshell for band termination & heat shrink
boot
24 Straight Screen Trap Adapter
25 90º Angled Screen Trap Adapter
26 Fixed Protective Caps
27 Free Protective Caps
28 Stowage Receptacle / Screened Gaskets
29 Contacts
30 Insertion & Extraction
31 Contact Insertaion
32 Contact Extraction
33 Safety Information
34 TT Electronics and the Environment
35 Global Sales Offi ces
Global Sales Offices
North America
Email: sales@ttelectronics-na.com
TT electronics Clive House 12-18 Queens Road Weybridge, Surrey KT13 9XB, UK
www.ttelectronics.com Email: info@ttelectronics.com
Asia
Email: sales@ttelectronicsasia.com
Europe
Email: sales@ttelectronicseurope.com
3
ABAC
There are TT electronics products in every single military vehicle
deployed in confl ict zones across the globe.
TT electronics plc is an international electronics company that has been supplying innovative high reliability components to the
military and defence markets for more than 30 years. The knowledge and experience gained in that time has been brought together
in a global team of designers and applications engineers dedicated to supporting the unique requirements of modern military
applications.Our industry experience and agile approach to business has given us a pre-eminent position in the supply of connectors
and other components to land-based military vehicles.
As a major plc listed on the London stock exchange, TT electronics plc has the fi nancial resources to continually invest in
up-to-the-minute manufacturing facilities to address our customer’s needs and provide them with the correct solution.
With design and manufacturing plants in Europe and the USA, we are able to fulfi l the Urgent Operational Requirements (UORs) of
defence forces globally with industrial and mil spec compliant connectorsand assemblies at exceptionally short notice.
In the harsh and unforgiving environment of the modern battlefi eld, it is essential that every single component is fi t for purpose.
Working closely on site with our OEM and ODM customers has given our engineering team a deep understanding of the changing
market trends and requirements of land based military vehicles, enabling them to engineer the best possible component solution.
Company Profi le
4ABAC
TT electronics plc is a global electronics company. Within its electronic
components group are multiple facilities for design and manufacture of
interconnection systems with engineering teams providing custom solutions.
Electrical systems in the modern military vehicle
need to provide the user with a ruggedised
reliable solution to the interconnection issues
encountered in a battlefi eld theatre environment.
With high reliability being taken as a given we are
in the position to off er solutions to brave the most
demanding of applications.
About TT electronics plc
Tracked vehicle
Armoured personnel
carriers
Land Rover
Unmanned vehicles
Security services
Military land based vehicles
Vibration and salt spray are just two of the hazards
facing military aircraft. We have developed a range
of screening products that allow the termination of
multiple screens in just such environments without
degradation to interconnection systems. Design and
manufacture of complex cable harnesses form part
of our core strengths. We are actively involved with
all systems within helicopter operations including
UOR activities system upgrades and role fi ts.
Military helicoptors
Search and Rescue
Commercial
helicoptors
Rotary wing aircraft
5
ABAC
The requirement for electrical protection on military
platforms becomes even more critical as both the
natural eff ects of lightning and the eff ect of warfare
can play havoc with electrical systems in the air and
on the ground.
We provide cost eff ective electrical interface
systems designed to withstand the eff ects of EMC,
EMI, EMP and HIRF along with the harshest of
environmental conditions.
Jet fi ghters
Propeller technology
Reconnaissance
Mission control suites
Military fi xed wing aircraft
As the need grows for smaller systems we design
lighter, more compact interconnection systems
featuring miniaturisation of connector products
and lightweight wiring solutions. Screening
remains a high priority and a full range of connector
accessories for all styles of connector form part of
our portfolio to ensure design is not compromised
in any way
Defensive aids suites
Test equipment
solutions
Radar equipment
interconnects
Missile and defensive suites
The civil aircraft market demands reliable
manufacturing processes. We produce critical
systems designed to ensure our solutions are in line
with those requirements. Cost effi cient, light-weight
reliable solutions are an integral part of any design
specifi cation.
We have a market leading technology in composite
systems, enabling your designers to enhance your
product off ering to your customer.
Landing gear
Flight guidance
systems
Engine management
Civil aircraft
The issues facing naval applications bring a
whole new set of problems to the design of
interconnection systems. We off er screened cable
and conduit systems approved for “above deck full
threat EMP protection. The ability to manufacture
interconnection panels and a component product
range off ering salt spray protection, ensures
environmental issues are catered for during the
design process
Radar systems
Submarine
communications
Panel assemblies
Naval systems
6ABAC
Note: The company reserves the right and may change or vary speci cation without prior written notice.
ABAC
technical information
Materials
Shell: Aluminium
Insulator: Rigid plastic / silicone rubber
Contacts: Copper alloy
Standard Plating Finishes
Aluminium parts: Cadmium Olive drab (W)
Electroless Nickel (F)
Nickel Flurocarbon Polymer (T)
Zinc cobalt green passivate (Q)
Black Zinc cobalt (QB)
Contacts: Gold over nickel plated
* Consult factory for alternative fi nishes.
Environmental Ratings
Temperature range: -65˚C to + 175˚C
Shock: 300g, 3 ms according EN 2591-D2 method A
Vibration: Sine: 10 to 2000 Hz, 3x12 hrs (60g, 140-2000 Hz) with temperature
cycling
Random: 50 to 2000 Hz , 2x8 hrs (1g² / Hz, 100-2000Hz) at Tº max.
25 to 2000 Hz , 2x8 hrs (5g² / Hz, 100-300Hz) (at ambient Tº)
Test with accessories in acc. with EN 2591-D3
Sealing: Mated connectors meet altitude immersion requirements of MIL-DTL-38999
Salt spray: 500 hrs
Resistance to fl uids: Gasoline: JP5 (OTAN F44)
Mineral hydraulic fl uid: MIL-H-5606 (OTAN H515)
Synthetic hydraulic fl uid: Skydrol 500 B4
Mineral lubricating: MIL-L-7870A (OTAN 0142)
Synthetic lubricating: MIL-L-23699 (OTAN 0156), MIL-L7808
Cleaning fl uid: MIL-DTL-25769 diluted
De-icing fl uid: MIL-A-8243
Extinguishing fl uid: Chlorobrométhane
Cooling fl uid: Coolanol
Mechanical Features
Coupling: 3 start stub acme thread
Contact termination: Crimp
Sealing: Dynamic sealing ring & individual wire seal grommet. IP67 rated.
Endurance: 500 mating / unmating operations
7
ABAC
ABAC
technical information
Test Voltage Rating (Vrms)
Test Voltage, ac rms, 60 Hz
Altitude Service rating M Service rating N Service rating I Service rating II
mated unmated mated unmated mated unmated mated unmated
Sea Level 1300 1300 1000 1000 1800 1800 2300 2300
50,000 ft. 800 550 600 400 1000 600 1000 800
70,000 ft. 800 350 600 260 1000 400 1000 500
100,000 ft. 800 200 600 200 1000 200 1000 200
Insulation Resistance
≥ 5 000 MΩ (at 500 Vdc) - at ambient
Cts Size 22 20 16 12 Power
Contact Rating (A) 5 7,5 13 23 45
Shell continuity: 2.5 mΩ
Shielding: 90 db at 100 MHz - 50 db at 10 GHz
Max. Current Rating
≥ 5 000 MΩ (at 500 Vdc)
Product Range: AB AC 20 W 11 35 P N XX
Shell style: 16 : Square flange receptacle with clinch nuts
20 : Square flange receptacle
24 : Jam nut receptacle
26 : Plug with RFI shielding
12 : Inline cable receptacle
13 : Box Mounting receptacle
14 : Square flange receptacle with PCB stand off
15 : Jam nut receptacle with PCB stand off
37 : Cable Plug with RFI and integral backshell
Plating:
W : Olive drab cadmium -65C to 175C
F : Electroless Nickel -65C to 200C
T : Nickel Flurocarbon Polymer -65C to 175C
Q : Zinc cobalt green passivate -65C to 175C
QB : Black Zinc cobalt -65C to 175C
Shell size: 9, 11, 13, 15, 17, 19, 21, 23 or 25
Contact layout: See pages 10, 11 & 12
Contact type: P : Pin A : Pin insert without contacts
S : Socket B: Socket insert without contacts
Orientation: N, A, B, C, D & E (See page 9)
Modification: Please consult factory
Basic Series: D38999 20 W B 35 P N
Shell style: 20 : Square flange receptacle
24 : Jam nut receptacle
26 : Plug with RFI shielding
Plating: W : Olive drab cadmium -65C to 175C
Shell size: A - B - C - D - E - F - G - H - J
Contact layout: See pages 10, 11 & 12
Contact type: P : Pin A : Pin insert without contacts
S : Socket B: Socket insert without contacts
Orientation: N, A, B, C, D & E (See page 9)
AB Part Number Explanation
ABAC
part number explanations
MIL-DTL-38999 Part Number Explanation
9
ABAC
Product Range: AB AC 20 W 11 35 P N XX
Shell style: 16 : Square flange receptacle with clinch nuts
20 : Square flange receptacle
24 : Jam nut receptacle
26 : Plug with RFI shielding
12 : Inline cable receptacle
13 : Box Mounting receptacle
14 : Square flange receptacle with PCB stand off
15 : Jam nut receptacle with PCB stand off
37 : Cable Plug with RFI and integral backshell
Plating:
W : Olive drab cadmium -65C to 175C
F : Electroless Nickel -65C to 200C
T : Nickel Flurocarbon Polymer -65C to 175C
Q : Zinc cobalt green passivate -65C to 175C
QB : Black Zinc cobalt -65C to 175C
Shell size: 9, 11, 13, 15, 17, 19, 21, 23 or 25
Contact layout: See pages 10, 11 & 12
Contact type: P : Pin A : Pin insert without contacts
S : Socket B: Socket insert without contacts
Orientation: N, A, B, C, D & E (See page 9)
Modification: Please consult factory
ABAC
part number explanations
Shell
Size
MS Shell
Size Angles N A B C D E
9 A
105 102 80 35 64 91
140 132 118 140 155 131
215 248 230 205 234 197
265 320 312 275 304 240
11 B
95 113 90 53 119 51
141 156 145 156 146 141
208 182 195 220 176 184
236 292 252 255 298 242
13 C
95 113 90 53 119 51
141 156 145 156 146 141
208 182 195 220 176 184
236 292 252 255 298 242
15 D
95 113 90 53 119 51
141 156 145 156 146 41
208 182 195 220 176 184
236 292 252 255 298 242
17 E
80 135 49 66 62 79
142 170 169 140 145 153
196 200 200 200 180 197
293 310 244 257 280 272
19 F
80 135 49 66 62 79
142 170 169 140 145 153
196 200 200 200 180 197
293 310 244 257 280 272
21 G
80 135 49 66 62 79
142 170 169 140 145 153
196 200 200 200 180 197
293 310 244 257 280 272
23 H
80 135 49 66 62 79
142 170 169 140 145 153
196 200 200 200 180 197
293 310 244 257 280 272
25 J
80 135 49 66 62 79
142 170 169 140 145 153
196 200 200 200 180 197
293 310 244 257 280 272
A
B
C
D
A
B
C
D
Viewed from face of receptacle Viewed from front of plug
ABAC
orientation
10 ABAC
D
A
C
B
E
12
3
4
5
6
7
8
9
10 11
13 12
A
B
C
D
EF
A
B
C
D
E
F
G
A
D
C
B
A
B
C
D
E
F
G
H
1
14
15
21
22
A
B
H
GK
F
C
J
E
D
A
B
C
E
D
A
B
C
D
E
F
G
H
J
K
L
M
N
R
P
A
B
C
D
E
F
G
H
J
K
L
MN
RS
TUP
A
M
LNPC
KU VRD
TS
JE
HF
1
21
31
A
B
C
D
E
K
J
H
L
M
G
F
1105
Service I
5 Contacts,
Size 20
1135
Service I
13 Contacts,
Size 22D
1198
Service I
6 Contacts,
Size 20
1199
Service I
7 Contacts,
Size 20
1304
Service M
4 Contacts,
Size 16
1308
Service I
8 Contacts,
Size 20
1335
Service M
22 Contacts,
Size 22D
1398
Service I
10 Contacts,
Size 20
1505
Service I
5 Contacts,
Size 16
1515
Service I
14 Contacts,
Size 20
1 Contacts,
Size 16
1518
Service I
18 Contacts,
Size 20
1519
Service I
19 Contact,
Size 20
1535
Service M
37 Contacts,
Size 22D
1597
Service I
8 Contact,
Size 20
4 Contacts,
Size 16
Shell Size 11
Shell Size 13
Shell Size 15
Shell Size 9
51
6
4
3
2
0935
Service M
6 Contacts,
Size 22D
ABAC
insert arrangements
Size 22D Contact
Size 20 Contact
Size 16 Contact
Size 12 Contact
Twinax Contact, Size 8
A
C
B
0998
Service l
3 Contacts,
Size 20
Note: Consult factory for other insert arrangements
11
ABAC
1706
Service I
6 Contacts,
Size 12
1708
Service II
8 Contacts,
Size 16
1726
Service I
26 Contacts,
Size 20
1799
Service I
2 Contacts,
Size 16
21 Contacts,
Size 20
1735
Service M
55 Contacts,
Size 22D
Shell Size 17
A
B
C
D
E
F
G
H
J
K
L
A
B
C
D
E
F
G
H
K
L
M
N
P
R
S
d
e
g
f
i
h
c
b
a
Y
Z
X
W
UV
J
T
1
3
64
66
4
9
58
63
10
16
51
57
17
24
43
50
25
33
34
42
JA
E
HB
K
L
F
GC
D
1
11
21
W
V
A
U
S
T
R
P
N
ML
e
f
g
h
i
j
X
k
m
n
t
r
s
q
B
C
D
E
F
G
H
J
K
d
c
La
Z
Y
p
b
A
B
D
C
A
B
C
D
E
F
HG
J
K
L
N
P
U
V
T
W
M
R
S
X
1
7
94
100
15
24
34
35
45
56
66
55
46
8
93
86
16
85
77
25
76
67
U
n
AA
GG
FF
w
f
K
A
W
q
CC
DD
u
d
J
T
m
z
y
x
g
L
B
X
r
s
t
c
H
R
P
N
D
E
F
S
l
k
j
h
M
C
Y
Z
a
b
G
V
p
BB
HH
EE
v
e
1911
Service I
11 Contacts,
Size 16
1932
Service M
32 Contacts,
Size 20
1935
Service M
66 Contacts,
Size 22D
2111
Service I
11 Contacts,
Size 12
2175
Service M
4 Twinax Contacts
2135
Service M
79 Contacts,
Size 22D
2141
Service I
41 Contacts,
Size 20
2321
Service II
21 Contacts,
Size 16
2335
Service M
100 Contacts,
Size 22D
2355
Service I
55 Contacts,
Size 20
Shell Size 19
Shell Size 23
1928
Service l
2 Contacts, Size 16
26 Contacts,
Size 20
2332
Service I
32 Contacts,
Size 20
A
B
C
D
E
F
G
H
K
L
M
N
P
R
S
c
d
e
b
a
J
Y
X
W
T
V
U
Z
A
B
C
D
E
G
H
J
M
N
a
b
Z
Y
F
U
T
S
K
R
P
L
V
W
X
h c
d
e
f
gj
AB
C
D
E
F
G
H
J
K
L
M
N
P
R
Y
S
Z
W
XV
U
T
1
3
9
16
24 31
39
45
52
55
53
46
40
32
25
17
10
4
AB
C
D
E
F
G
H
J
K
L
M
N
R
ST
U
P
V
W
X
Y
Z
ab
c
A
B
H
C
E
F
G
D
A
B
D
E
F
C
Shell Size 21
A
B
C
D
E
F
G
H
J
K
L
M
RP
SN
2116
Service II
16 Contacts,
Size 16
Note: Consult factory for other insert arrangements
12 ABAC
R
S
Z
P
Y
N4
7
3
M
J
X
LK
A
5
W
B
C
TD
U
1
62E
F
V
G
N
J
A
E
H
B
K
L
M
N
P
U
V
R
Y
Z
aT
S
W
V
F
G
C
D
W
Vtu
s
U
r
T
q
S
n
R
p
Pm
N
Mh
A
B
C
D
E
X
Y
Z
a
b
F
c
dG
H
ek
J
f
g
L K
AA v
y x
AA
2520
Service N
10 Contacts, Size 20
13 Contacts, Size 16
4 Coax Contacts,
Size 12
3 Twinax Contacts,
Size 8
2535
Service M
128 Contacts,
Size 22D
2546
Service I
40 Contacts, Size 20
4 Contacts, Size 16
2 Coax Contacts,
Size 8
Shell Size 25
2524
Service I
12 Contacts,
Size 12
12 Contacts,
Size 16
Shell Size 25
ABAC
insert arrangements
continued...
Note: Consult factory for other insert arrangements
13
ABAC
Shell Size MS Shell Size
Contact
Arrangement
No. of
Contacts
Size
22D
Size
20
Size
16
Size
12
Size 8
Twinax
9 A 09-35 6 6
09-98 3 3
11 B
11-05 5 5
11-35 13 13
11-98 6 6
11-99 7 7
13 C
13-04 4 4
13-08 8 8
13-35 22 22
13-98 10 10
15 D
15-05 5 5
15-15 15 14 1
15-18 18 18
15-19 19 19
15-35 37 37
15-97 12 8 4
17 E
17-06 6 6
17-08 8 8
17-26 26 26
17-35 55 55
17-99 23 21 2
19 F
19-11 11 11
19-28 28 26 2
19-32 32 32
19-35 66 66
21 G
21-11 11 11
21-16 16 16
21-35 79 79
21-41 41 41
21-75 4 4
23 H
23-21 21 21
23-32 32 32
23-35 100 100
23-55 55 55
25 I
25-20 30 10 13 4 (coax) 3
25-24 24 12 12
25-35 128 128
25-46 46 40 4 2
ABAC
insert arrangement specifi cation
14 ABAC
ABAC
MIL-DTL-38999 receptacle type 20
Shell
Size A max. B max. C max. D thread
E
± 0.30 F G
H
± 0.20
J
± 0.20 K max.
09 20.90 10.60 2.50 M12 x 1-6g 23.80 18.26 15.09 3.25 5.49 5.94
11 20.90 10.60 2.50 M15 x 1-6g 26.20 20.62 18.26 3.25 4.93 5.94
13 20.90 10.60 2.50 M18 x 1-6g 28.60 23.01 20.62 3.25 4.93 5.94
15 20.90 10.60 2.50 M22 x 1-6g 31.00 24.61 23.01 3.25 4.93 5.94
17 20.90 10.60 2.50 M25 x 1-6g 33.30 26.97 24.61 3.25 4.93 5.94
19 20.90 10.60 2.50 M28 x 1-6g 36.50 29.36 26.97 3.25 4.93 5.94
21 20.10 11.40 3.20 M31 x 1-6g 39.70 31.75 29.36 3.25 4.93 5.18
23 20.10 11.40 3.20 M34 x 1-6g 42.90 34.93 31.75 3.91 6.15 5.18
25 20.10 11.40 3.20 M37 x 1-6g 46.00 38.10 34.93 3.91 6.15 5.18
A B
C
G
F
E
J
H
D
K
Panel
Thickness
ABAC
MIL-DTL-38999 receptacle type 24
22.60 MAX
C
B
F
Ø D
A A/F
E A/F
G
Shell Size A + 0.10
- 0.15 B max. C max. D Ø max. E max. F
± 0.40 G thread
09 16.53 9.90 3.20 30.50 23.00 27.00 M12 x 1-6g
11 19.07 9.90 3.20 35.20 26.00 31.80 M15 x 1-6g
13 23.82 9.90 3.20 38.40 31.00 34.90 M18 x 1-6g
15 26.97 9.90 3.20 41.60 34.00 38.10 M22 x 1-6g
17 30.15 9.90 3.20 44.80 37.00 41.30 M25 x 1-6g
19 33.32 9.90 3.50 49.50 41.00 46.00 M28 x 1-6g
21 36.50 9.90 3.50 52.70 46.00 49.20 M31 x 1-6g
23 39.67 9.90 3.50 55.90 47.00 52.40 M34 x 1-6g
25 42.85 9.90 3.50 59.00 52.00 55.60 M37 x 1-6g
15
ABAC
ABAC
in line receptacle type 12
EXAMPLE PART NUMBER: ABAC 12 W 17 35 S N
PRODUCT SERIES
SHELL STYLE
FINISH (TABLE 2)
SHELL SIZE (TABLE 1)
INSERT ARRANGEMENT
CONTACT TYPE
P = PIN CONTACTS
S = SOCKET CONTACTS
ORIENTATION
*CONSULT FACTORY FOR CUSTOM REQUIREMENTS
�����������������
IF NOT , A NEW DRAWING NUMBER MUST
THE PART REMAINS INTERCHANGEABLE.
THIS DRAWING MAY ONLY BE ALTERED IF
ANGULAR
2
HOLE DIAMETERS
0.05
ALL DECIMAL PLACES
0.1
MODIFICATIONS MUST BE CARRIED OUT USING CAD SYSTEM
TOLERANCES UNLESS OTHERWISE STATED
MATERIAL:
PROFILE OF A SURFACE
PROFILE OF A LINE
PARALLELISM
CYLINDRICITY
ROUNDNESS
FLATNESS
STRAIGHTNESS
CHARACTERISTIC
GEOMETRIC TOLERANCE SYMBOLS
A3
TOLERANCES. NOTES. ETC. SEE BS308
FOR EXPLANATION OF DIMENSIONS.
SQUARENESS
SYMMETRY
CONCENTRICITY
POSITION
RUN OUT
ANGULARITY
CHARACTERISTIC
M.M.C.
SYM
M
SYM
CHKD
DATE
DRAWN
BE TAKEN.
WORKED TO.
NOT TO BE
PURPOSES ONLY.
FOR QUOTATION
DRAWING
All Dimensions are in mm
DESCRIPTION OF LAST CHANGE
c ABConnectors Ltd. This document and the information contained herein may not be copied, used or disclosed, in whole
or in part, except with the prior written permission of AB CONN