MIL-SPEC · D38999/20Updated 2026-10-03
D38999/20FA35SN
The base code '/20FA35S' specifies the connector's shell type, material and finish, shell size, insert arrangement, and contact type. '/20' indicates a wall mount receptacle. 'F' denotes an environmental aluminum shell with an electroless nickel finish, rated for 200°C, providing EMI shielding and 48-hour salt spray resistance. 'A' signifies a shell size 9. '35' refers to an insert arrangement with 6 positions. 'S' specifies socket contacts. The suffix 'N' indicates a normal keying position. The D38999 prefix identifies the specification standard for MIL-DTL-38999 circular connectors, which are widely used in aerospace, defense, and harsh environment applications.
Part number dissection
D38999The D38999 prefix identifies the specification standard for MIL-DTL-38999 circular connectors, which are widely used in aerospace, defense, and harsh environment applications.
/20FA35SThe base code '/20FA35S' specifies the connector's shell type, material and finish, shell size, insert arrangement, and contact type. '/20' indicates a wall mount receptacle. 'F' denotes an environmental aluminum shell with an electroless nickel finish, rated for 200°C, providing EMI shielding and 48-hour salt spray resistance. 'A' signifies a shell size 9. '35' refers to an insert arrangement with 6 positions. 'S' specifies socket contacts.
NThe suffix 'N' indicates a normal keying position.
Specifications
Base codeThe base code '/20FA35S' specifies the connector's shell type, material and finish, shell size, insert arrangement, and contact type. '/20' indicates a wall mount receptacle. 'F' denotes an environmental aluminum shell with an electroless nickel finish, rated for 200°C, providing EMI shielding and 48-hour salt spray resistance. 'A' signifies a shell size 9. '35' refers to an insert arrangement with 6 positions. 'S' specifies socket contacts.
Finish / variantThe suffix 'N' indicates a normal keying position.
Qualified sources · QPL-38999
GLENAIR, INC.CAGE 06324 · USA
HI REL CONNECTORS, INC.CAGE 34222 · USA
SOURIAUCAGE F0225 · FRA
AERO-ELECTRIC CONNECTOR, INC.CAGE 59976 · USA
CORSAIR ELECTRICAL CONNECTORS INCCAGE 1R6R9 · USA
AMPHENOL CORPCAGE 77820 · USA
AMPHENOL SOCAPEX (DC ELECTRONICS INC)CAGE F6162 · FRA
TE CONNECTIVITY CORPORATION (TYCO ELECTRONICS CORPORATION)CAGE 11139 · USA
AMPHENOL INTERCONNECT INDIA PRIVATE LIMITEDCAGE 1433Y · IND
Sources listed on the Qualified Products List for D38999/20FA35SN, per DLA's Qualified Products Database. View on DLA QPD ↗
Acceptable alternates
D38999/20WA35SNaluminum shell, olive drab cadmium over electroless nickel finish
D38999/20GA35SNenvironmental, space grade aluminum shell, electroless nickel finish
D38999/20JA35SNenvironmental composite shell, cadmium olive drab finish
D38999/20KA35SNenvironmental firewall stainless steel shell, electroless nickel finish
D38999/20MA35SNenvironmental composite shell, electroless nickel finish
D38999/20SA35SNenvironmental stainless steel shell, electrodeposited nickel finish
D38999/20ZA35SNaluminum shell, black zinc nickel finish
D38999/20TA35SNaluminum shell, nickel-PTFE finish
Confirm acceptability against your drawing before ordering.
Availability
Lead timeQuoted on request
TraceabilityFull documentation with every shipment
BTEK sources through registry-verified producers and authorized channels. Certs of conformance travel with the parts.
Price on request — confirmed same day.
Get a quote in minutes.
Quantity and target date. BTEK's quoting engine sources, prices and replies by email.
BTEK Components MFG LLC · Largo, FloridaPart data compiled and verified by BTEK's sourcing engine.