INCH-POUND MS27501H 15 June 2012 SUPERSEDING MS27501G 12 July 2002 DETAIL SPECIFICATION SHEET CONNECTORS, ELECTRICAL, CIRCULAR, COVER, PROTECTIVE, PLUG, BAYONET COUPLING, SERIES I This specification is approved for use by all Departments and Agencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-38999. FIGURE 1. Cover. AMSC N/A FSC 5935 MS27501H Shell size A dia +.001 -.005 F dia max H J +.500 / -.250 +.010 L Standard chain length -.015 max 9 .572 .82 11 .700 13 M X Y max min 3.0 77 113 .94 67 123 .850 1.07 63 127 15 .975 1.19 61 129 17 1.100 1.32 19 1.207 1.44 21 1.332 1.57 23 1.457 1.69 25 1.582 1.82 3.5 .567 4.0 FIGURE 1. Cover - Continued. 2 .9 LL .58 1.16 65 125 69 121 MS27501H Inches mm Inches mm Inches mm Inches mm .001 0.03 .567 14.40 1.075 27.2 1.57 39.9 .005 0.13 .572 14.53 1.100 27.94 1.582 40.18 .010 0.25 .58 14.7 1.16 29.5 1.69 42.9 .015 0.38 .700 17.78 1.19 30.2 1.82 46.2 .047 1.19 .82 20.8 1.207 30.66 3.0 76.0 .063 1.60 .850 21.59 1.32 33.5 3.5 89.0 .167 4.24 .9 22.9 1.332 33.83 4.0 102.0 .250 6.35 .94 23.9 1.44 36.6 5.0 127.0 .500 12.70 .975 24.76 1.457 37.01 6.0 152.0 7.0 178.0 NOTES: 1. Dimensions are in inches. 2. Metric equivalents are given for information only. 3. Finish: See MIL-DTL-38999. 4. BSC dimensions apply at Maximum Material Condition (MMC). 5. The gauge features for GG shall be .004 inches (0.10 mm) smaller than MMC size at basic location. 6. Not for space born applications. FIGURE 1. Cover - Continued. REQUIREMENTS: Dimensions and configuration: See figure 1. Interface dimensions shall conform to MIL-DTL-38999. Material: Cap - Impact extruded or machined aluminum alloy. Disk - Silicone or fluorosilicone elastomer. Chain - Stainless steel, passivated, conforming to RR-C-271, type II, class 3. Fastener - Stainless steel, passivated. Mating connectors: MIL-DTL-38999 series I, and MIL-DTL-27599 series I. Disk shall be bonded to cover, or mechanically retained. Chain shall rotate freely on fastener. The protective cover and chain assembly shall withstand a static tensile load of 35 pounds applied along the B reference line for 5 minutes. Fastener tensile strength: Both axial and longitudinal directions shall be 25 pounds. The load shall be applied to the end of the chain. 3 MS27501H Qualification: Examination of product. Mating and unmating forces. Humidity. Salt spray (corrosion). Fastener tensile strength (see requirement). Altitude immersion. Group A sampling inspection. 100% inspection is not applicable. Sampling inspection shall be in accordance with table I: TABLE I. Group A sampling plan. Lot size Sample size 1 to 13 14 to 150 151 to 280 281 to 500 501 to 1,200 1,201 to 3,200 100 percent 13 units 20 units 29 units 34 units 42 units Part or Identifying Number (PIN) example: MS27501 B 11 MS number Finish Shell size Style C - Chain A - Without chain Length (Omit for style A or style C with standard chain length) (tolerance: +.500, -.250) L - 5 inch chain in lieu of standard length M - 6 inch chain in lieu of standard length N - 7 inch chain in lieu of standard length 4 C L MS27501H Changes from previous issue. Marginal notations are not used in this revision to identify changes with respect to the previous issue, due to the extent of the changes. Referenced documents. In addition to MIL-DTL-38999, this document references the following: MIL-DTL-27599 RR-C-271 CONCLUDING MATERIAL Custodians: Army - CR Navy - AS Air Force - 85 DLA - CC Preparing activity: DLA - CC (Project 5935-2012-041) Review activities: Army - AR, MI Navy - EC, MC, OS Air Force - 19, 99 NOTE: The activities listed above were interested in this document as of the date of this document. Since organizations and responsibilities can change, you should verify the currency of the information above using the ASSIST Online database at https://assist.dla.mil. 5