MIL-SPEC · D38999/20Updated 2026-10-03
D38999/20MB35SN
/20 indicates a wall mount receptacle shell style. M indicates aluminum shell material. B indicates an electroless nickel shell finish. 35 indicates the insert arrangement, which specifies 13 contacts. The 'B' in 'MB35' refers to the shell size. S indicates a socket (female) contact type. N indicates normal keying position. D38999 identifies a MIL-DTL-38999 Series III military standard circular connector.
Part number dissection
D38999D38999 identifies a MIL-DTL-38999 Series III military standard circular connector.
/20MB35/20 indicates a wall mount receptacle shell style. M indicates aluminum shell material. B indicates an electroless nickel shell finish. 35 indicates the insert arrangement, which specifies 13 contacts. The 'B' in 'MB35' refers to the shell size.
SNS indicates a socket (female) contact type. N indicates normal keying position.
Specifications
Base code/20 indicates a wall mount receptacle shell style. M indicates aluminum shell material. B indicates an electroless nickel shell finish. 35 indicates the insert arrangement, which specifies 13 contacts. The 'B' in 'MB35' refers to the shell size.
Finish / variantS indicates a socket (female) contact type. N indicates normal keying position.
Qualified sources · QPL-38999
GLENAIR, INC.CAGE 06324 · USA
SOURIAUCAGE F0225 · FRA
AMPHENOL CORPCAGE 77820 · USA
AMPHENOL SOCAPEX (DC ELECTRONICS INC)CAGE F6162 · FRA
AMPHENOL INTERCONNECT INDIA PRIVATE LIMITEDCAGE 1433Y · IND
Sources listed on the Qualified Products List for D38999/20MB35SN, per DLA's Qualified Products Database. View on DLA QPD ↗
Acceptable alternates
D38999/20MB35SAThis is a part number alias for a wall mount receptacle.
D38999/20WB35SNThis part number is a 13 position circular connector receptacle with female sockets and crimp termination, similar to the original part number but with a different shell finish.
D38999/20GB35SNThis part number is a circular MIL Spec connector with a wall mount receptacle, aluminum shell material, and electroless nickel shell finish, similar to the original part number but with a different shell finish code.
D38999/20TB35SNThis part number is a circular MIL Spec connector TV 13C 13#22D SKT RECP, similar to the original part number but with a different shell finish code.
D38999/20ZB35SNThis part number is a circular MIL Spec connector TV 13C 13#22D SKT RECP ZNI, similar to the original part number but with a different shell finish code.
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Availability
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BTEK Components MFG LLC · Largo, FloridaPart data compiled and verified by BTEK's sourcing engine.