MIL-SPEC · D38999/20Updated 2026-10-03
D38999/20WB35AN
The '/20' indicates a wall mount receptacle shell style. 'W' specifies the shell material and finish as olive drab chromate over cadmium plating on an aluminum alloy body. 'B' denotes shell size 11. '35' refers to the insert arrangement, which is a high-density size-22D layout. 'A' indicates an alternate keying position. The 'N' at the end of the part number specifies the contact type as normal keying. This prefix indicates full compliance with the official United States Department of Defense interconnect framework, specifically MIL-DTL-38999 Series III connectors.
Part number dissection
D38999This prefix indicates full compliance with the official United States Department of Defense interconnect framework, specifically MIL-DTL-38999 Series III connectors.
/20WB35AThe '/20' indicates a wall mount receptacle shell style. 'W' specifies the shell material and finish as olive drab chromate over cadmium plating on an aluminum alloy body. 'B' denotes shell size 11. '35' refers to the insert arrangement, which is a high-density size-22D layout. 'A' indicates an alternate keying position.
NThe 'N' at the end of the part number specifies the contact type as normal keying.
Specifications
Base codeThe '/20' indicates a wall mount receptacle shell style. 'W' specifies the shell material and finish as olive drab chromate over cadmium plating on an aluminum alloy body. 'B' denotes shell size 11. '35' refers to the insert arrangement, which is a high-density size-22D layout. 'A' indicates an alternate keying position.
Finish / variantThe 'N' at the end of the part number specifies the contact type as normal keying.
Acceptable alternates
D38999/20FB35ANElectroless nickel finish on aluminum
D38999/20GB35ANSpace grade electroless nickel finish on aluminum
D38999/20JB35ANComposite cadmium olive drab finish
D38999/20KB35ANElectroless nickel finish on stainless steel (firewall)
D38999/20MB35ANComposite electroless nickel finish
D38999/20SB35ANElectro deposited nickel finish on stainless steel
D38999/20TB35ANNickel PTFE finish on aluminum
D38999/20ZB35ANBlack zinc-nickel finish on aluminum
Confirm acceptability against your drawing before ordering.
Availability
Lead timeQuoted on request
TraceabilityFull documentation with every shipment
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BTEK Components MFG LLC · Largo, FloridaPart data compiled and verified by BTEK's sourcing engine.