1、 MIL-DTL-28840/27D 21 November 2013 SUPERSEDING MIL-DTL-28840/27C 11 January 2010 DETAIL SPECIFICATION SHEET CONNECTORS, ELECTRICAL, CIRCULAR, THREADED, HIGH SHOCK, HIGH DENSITY, SHIPBOARD, BACKSHELL, 45, METAL CONDUIT FOR EMI SHIELDING This specification is approved for use by all Departments and A
2、gencies of the Department of Defense. The requirements for acquiring the product described herein shall consist of this specification sheet and MIL-DTL-28840. STYLE A FIGURE 1. Dimensions and configurations. AMSC N/A FSC 5935 INCH-POUND Provided by IHSNot for ResaleNo reproduction or networking perm
3、itted without license from IHS-,-,-MIL-DTL-28840/27D 2 ALTERNATE STYLE A FIGURE 1. Dimensions and configurations - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840/27D 3 STYLE B FIGURE 1. Dimensions and configurations - Contin
4、ued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840/27D 4 ALTERNATE STYLE B FIGURE 1. Dimensions and configurations - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-
5、28840/27D 5 Dash no. Designator (see note 1) A thread class 2B B max dia C thread class 2 1 A (11) .750-20UNEF 1.028 (16.11) .875-20UNEF 2 B (13) .875-20UNEF 1.141 (28.98) .875-20UNEF 3 1.000-20UNEF 4 C (15) 1.000-20UNEF 1.263 (32.08) .875-20UNEF 5 1.000-20UNEF 6 1.125-18UNEF 7 1.250-18UNEF 8 D (17)
6、 1.125-18UNEF 1.387 (38.23) 1.125-18UNEF 9 1.250-18UNEF 10 1.625-18UNEF 11 E (19) 1.250-18UNEF 1.513 (38.43) 1.125-18UNEF 12 1.250-18UNEF 13 1.625-18UNEF 14 F (23) 1.438-18UNEF 1.703 (43.26) 1.250-18UNEF 15 1.625-18UNEF 16 1.875-18UNS 17 G (25) 1.562-18UNEF 1.825 (46.35) 1.250-18UNEF 18 1.625-18UNEF
7、 19 1.875-18UNS 20 2.125-16UN 21 H (29) 1.875-16UN 2.143 (54.43) 1.875-18UNS 22 2.125-16UN 23 J (33) 2.062-16UNS 2.329 (59.16) 2.125-16UN 24 2.750-16UN 25 A (11) .750-20UNEF 1.028 (16.11) .875-20UNEF FIGURE 1. Dimensions and configurations - Continued. Provided by IHSNot for ResaleNo reproduction or
8、 networking permitted without license from IHS-,-,-MIL-DTL-28840/27D 6 Dash no. Designator (see note 1) D dia max Sealing range Conduit size MIL-DTL-28840/4 E max dim max min 1 A (11) 1.031 (26.19) .63 (16.0) .50 (12.7) 03 2.36 (59.9) 2 B (13) .63 (16.0) .50 (12.7) 03 3 .75 (19.1) .63 (16.0) 04 4 C
9、(15) 1.281 (32.50) .63 (16.0) .50 (12.7) 03 2.56 (65.0) 5 .75 (19.1) .63 (16.0) 04 6 .88 (22.4) .75 (19.1) 05 7 1.531 (38.89) 1.00 (25.4) .88 (22.4) 06 2.67 (67.8) 8 D (17) .88 (22.4) .75 (19.1) 05 9 1.00 (25.4) .88 (22.4) 06 10 1.38 (35.1) 1.19 (30.2) 08 11 E (19) .88 (22.4) .75 (19.1) 05 12 1.00 (
10、25.4) .88 (22.4) 06 13 1.781 (45.24) 1.38 (35.1) 1.19 (30.2) 08 3.05 (77.5) 14 F (23) 1.00 (25.4) .88 (22.4) 06 15 1.38 (35.1) 1.19 (30.2) 08 16 1.63 (41.4) 1.44 (36.6) 10 17 G (25) 1.00 (25.4) .88 (22.4) 06 18 1.38 (35.1) 1.19 (30.2) 08 19 1.43 (36.3) 1.44 (36.6) 10 20 2.031 (51.59) 1.88 (47.8) 1.6
11、3 (41.4) 12 3.33 (84.6) 21 H (29) 1.63 (41.4) 1.44 (36.6) 10 22 1.88 (47.8) 1.63 (41.4) 12 23 J (33) 2.531 (64.29) 1.88 (47.8) 1.63 (41.4) 12 3.70 (94.0) 24 2.38 (60.5) 2.13 (54.1) 16 25 A (11) 1.031 (26.19) .75 (19.1) .63 (16.0) 04 2.36 (59.9) FIGURE 1. Dimensions and configurations - Continued. Pr
12、ovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840/27D 7 Dash no. Designator (see note 1) F max dim V thread class 2 M dia max Y dia max 1 A (11) 3.50 (88.9) 1.000-20UNEF 1.12 (28.5) 1.19 (30.23) 2 B (13) 1.000-20UNEF 1.12 (28.5) 1.19 (30.23
13、) 3 1.188-18UNEF 1.25 (31.8) 1.38 (35.1) 4 C (15) 3.69 (93.73) 1.000-20UNEF 1.12 (28.5) 1.19 (30.23) 5 1.188-18UNEF 1.25 (31.8) 1.38 (35.1) 6 1.438-18UNEF 1.43 (36.3) 1.63 (41.4) 7 3.81 (96.8) 1.750-18UNS 1.62 (41.2) 1.94 (49.3) 8 D (17) 1.438-18UNEF 1.43 (36.3) 1.63 (41.4) 9 1.750-18UNS 1.62 (41.2)
14、 1.94 (49.3) 10 2.00-18UNS 1.81 (46.0) 2.19 (55.6) 11 E (19) 1.438-18UNEF 1.43 (36.3) 1.63 (41.4) 12 1.750-18UNS 1.62 (41.2) 1.94 (49.3) 13 4.19 (106.4) 2.00-18UNS 1.81 (46.0) 2.19 (55.6) 14 F (23) 1.750-18UNS 1.62 (41.2) 1.94 (49.3) 15 2.00-18UN 1.81 (46.0) 2.19 (55.6) 16 2.250-16UN 2.18 (55.4) 2.4
15、4 (62.0) 17 G (25) 1.750-18UNS 1.62 (41.2) 1.94 (49.3) 18 2.00-18UN 1.81 (46.0) 2.19 (55.6) 19 2.250-16UN 2.18 (55.4) 2.44 (62.0) 20 4.50 (114.3) 2.500-16UN 2.56 (65.0) 2.69 (68.3) 21 H (29) 2.250-16UN 2.18 (55.4) 2.44 (62.0) 22 2.500-16UN 2.56 (65.0) 2.69 (68.3) 23 J (33) 4.83 (122.7) 2.500-16UN 2.
16、56 (65.0) 2.69 (68.3) 24 3.00-16UN 3.06 (77.8) 3.19 (81.0) 25 A (11) 3.50 (88.9) 1.188-18UNEF 1.25 (31.8) 1.38 (35.1) NOTES: 1. Shell sizes are provided within parentheses for information and are not a part of the designator. 2. Dimensions are in inches. 3. Metric equivalents are given for informati
17、on only. 4. Dimensions apply after plating. FIGURE 1. Dimensions and configurations - Continued. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840/27D 8 REQUIREMENTS: Dimensions and configurations: See figure 1. Interface dimensions in ac
18、cordance with MIL-DTL-28840. Material and finish: See table I. Elastomers, silicone rubber shall be in accordance with A-A-59588. TABLE I. Material and finish. Material and finish designator Material Finish W Aluminum alloy in accordance with ASTM B85/B85M, ASTM B26/B26M, ASTM B108/B108M, ASTM B209,
19、 ASTM B211, or ASTM B221 Cadmium plate, olive drab over electroless nickel D Corrosion resistant steel in accordance with ASTM A276, ASTM A473, or ASTM A580/A580M, type 316 Cadmium plate, black 1/ F Aluminum alloy in accordance with ASTM B85/B85M, ASTM B26/B26M, ASTM B108/B108M, ASTM B209, ASTM B211
20、, or ASTM B221 Pure electro- deposited aluminum, non-reflective L Nickel fluorocarbon polymer, non-reflective S Zinc nickel, non-reflective N Corrosion resistant steel in accordance with ASTM A276, ASTM A473, or ASTM A580/A580M, type 316 Nickel fluorocarbon polymer, non-reflective R Zinc nickel, non
21、-reflective 1/ Screws and washers shall be passivated in accordance with SAE-AMS2700, type 2. Marking: The backshell shall be identified with the manufacturers name or trademark and the Part or Identifying Number (PIN). PIN example: M28840 /27 16 W A Military designator Style designator A EMI / non-
22、environmental Specification sheet number B EMI / environmental Dash number Material and finish designator (See table I) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-28840/27D 9 QUALIFICATION: Two samples in each shell size for which qualif
23、ication is desired shall be tested in accordance MIL-DTL-28840. Qualification of MIL-DTL-28840/9 will qualify MIL-DTL-28840/27 by similarity for group 5 tests. RESTRICTIONS: Material and finish designators W and D are inactive for NAVSEA new design, unless approved by NAVSEA. Changes from previous i
24、ssue. The margins of this specification are marked with vertical lines to indicate where changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations. Bidders and contractors are cautioned to
25、 evaluate the requirements of this document based on the entire content irrespective of the marginal notations and relationship to the last previous issue. Referenced documents. In addition to MIL DTL-28840, this document references the following: MIL-DTL-28840/4 MIL-DTL-28840/9 MIL-DTL-28840/22 A-A
26、-59588 ASTM A276 ASTM A473 ASTM A580/A580M ASTM B26/B26M ASTM B85/B85M ASTM B108/B108M ASTM B209 ASTM B211 ASTM B221 SAE-AMS2700 CONCLUDING MATERIAL Custodians: Preparing activity: Army - AT DLA - CC Navy - EC Air Force - 85 DLA - CC (Project 5935-2013-125) Review activities: Army AV, MI Air Force 9
27、9 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. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
