MS/NAS Style - 303 CRES Keylocking Threaded Inserts
Extra Heavy Duty- Inch
Material: Insert - 303 CRES
Keys- 302 CRES
Finish: Passivated
Tolerances: ±.010 inch unless specified otherwise
Internal Threads: Per SAE AS8879
Dimensions: All dimensions below are in inches
Keys: Inserts with an internal thread size of 1/4 and larger are furnished with
4 locking keys. Smaller sizes have 2 locking keys.
Material Identification Mark: None
Lubrication: Dry Film Lube on Self-Locking Inserts only
Performance: MIL-I-45914A (MS51832)
To request a quote, Click on the MS or Acme part number in the chart below.
Insert Installation/
Removal
Non-Locking Self-Locking Dimensions
MS/NAS ACME Part
Number MS/NAS ACME Part
Number
Internal
Thread
Class 3B
External
Thread (Mod.)
Class 2A
H
Length
J
±.030
K
C'Bore
Depth
Install Tool
Part No.
MS51832-101 217-076333 MS51832-101L 217-077333 10 - 24 7/16 - 14 .312 .22 .07 217-072628
MS51832-201 217-076533 MS51832-201L 217-077533 10 - 32 217-072629
MS51832-102 217-076334 MS51832-102L 217-077334 1/4 - 20 1/2 - 13 .375 .22 .07 217-072630
MS51832-202 217-076534 MS51832-202L 217-077534 1/4 - 28 217-072631
MS51832-103 217-076335 MS51832-103L 217-077335 5/16 - 18 9/16 - 12 .437 .22 .07 217-072632
MS51832-203 217-076535 MS51832-203L 217-077535 5/16 - 24 217-072633
MS51832-104 217-076336 MS51832-104L 217-077336 3/8 - 16 5/8 - 11 .500 .25 .07 217-072634
MS51832-204 217-076536 MS51832-204L 217-077536 3/8 - 24 217-072635
MS51832-105 217-076337 MS51832-105L 217-077337 7/16 - 14 11/16 - 11NS .625 .28 .10 217-072636
MS51832-205 217-076537 MS51832-205L 217-077537 7/16 - 20 217-072637
MS51832-106 217-076338 MS51832-106L 217-077338 1/2 - 13 13/16 - 16 .688 .28 .10 217-072638
MS51832-206 217-076538 MS51832-206L 217-077538 1/2 - 20 217-072639
MS51832-107 217-076339 MS51832-107L 217-077339 9/16 - 12 7/8 - 14 .812 .32 .10 217-072640
MS51832-207 217-076539 MS51832-207L 217-077539 9/16 - 18 217-072641
MS51832-108 217-076340 MS51832-108L 217-077340 5/8 - 11 1" - 12 .875 .33 .10 217-072642
MS51832-208 217-076540 MS51832-208L 217-077540 5/8 - 18 217-072643
MS51832-109 217-076341 3/4 - 10
1-1/4 - 12
1.125
.10
217-072644
MS51832-209 217-076541 3/4 - 16 217-072645
MS51832-109L 217-077341 3/4 - 10 1.250 .49 217-072644
MS51832-209L 217-077541 3/4 - 16 217-072645
MS51832-110 217-076342 7/8 - 9
1-3/8 - 12
1.250
.10
217-072646
MS51832-210 217-076542 7/8 - 14 217-072647
MS51832-110L 217-077342 7/8 - 9 1.375 .49 217-072646
MS51832-210L 217-077542 7/8 - 14 217-072647
MS51832-111 217-076343 1" - 8
1-1/2 - 12
1.375
.10
217-072648
MS51832-211 217-076543 1" - 12 217-072649
MS51832-111L 217-077343 1" - 8 1.500 .55 217-072648
MS51832-211L 217-077543 1" - 12 217-072649
For inserts with the following options, add the letter code shown to the end of the Acme part number:
S — Silver Plate per AMS 2410
SN — Silver Plate Only, No Dry Film Lube (Self-Locking Inserts Only
DFL — Dry Film Lube (Non-Locking INserts Only)
K — Self Broaching Keys
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