MIL-SPEC · Electronic Components
D38999/20WH21SA
Connector, Receptacle, Electrical
Part NumberD38999/20WH21SA
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-313-0974 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Overall Width42.6 MILLIMETERS MINIMUM AND 43.2 MILLIMETERS MAXIMUM
Overall Height42.6 MILLIMETERS MINIMUM AND 43.2 MILLIMETERS MAXIMUM
Distance Between Centerlines Of Mo31.75 MILLIMETERS MINIMUM AND 34.93 MILLIMETERS MAXIMUM
Threaded Device TypeBACK SHELL AND COUPLING FACILITY
Distance From Mounting Shoulder To20.1 MILLIMETERS MAXIMUM
Environmental ProtectionMOISTURE PROOF AND SALT WATER RESISTANT AND VIBRATION PROOF AND CORROSION RESISTANT AND DUST RESISTANT AND FUEL RESISTAN
Mating End Quantity1
Center To Center Distance Between31.75 MILLIMETERS MINIMUM AND 34.93 MILLIMETERS MAXIMUM
Insert MaterialPLASTIC EPOXY SINGLE MATING END
Included Contact TypeROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
Precious MaterialGOLD
ESD/EMICode A — ESD/EMI sensitive item
RH Electronics, Inc. — independent stocking distributor since 1982.
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Every shipment inspected on receipt · ISO 9001:2015 · ANSI/ESD S20.20 · ERAI member since 1998 · GIDEP participant
Frequently asked
Is D38999/20WH21SA available?
We can source D38999/20WH21SA even if it isn't in our active stock list. As an independent distributor we reach inventory outside the franchise channel — including hard-to-find and obsolete parts. Send us a quote request.
Is D38999/20WH21SA by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If D38999/20WH21SA has been discontinued, we can often source remaining stock or qualified alternates. Contact us with your quantity and target date.
How does RH Electronics verify parts like D38999/20WH21SA?
Every incoming shipment is inspected under our ISO 9001:2015 quality system — documentation, markings, and construction checked against known-good references. For deeper analysis, we direct work through accredited independent labs. We've been an ERAI member since 1998 and a GIDEP participant.
Can you find a cross-reference or alternate for D38999/20WH21SA?
Yes. Our team reads part numbers the way they were designed — decoding family, speed, temperature grade, package, and reliability level — to identify acceptable alternates when the exact part isn't available. Submit a quote request and we'll advise.