Winchester Interconnect Corporation · Electronic Components
KM21S
Connector, Receptacle, Electrical
Part NumberKM21S
ManufacturerWinchester Interconnect Corporation
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-583-1614 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Contact Surface TreatmentGOLD SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material And LocationCONTACT SURFACES GOLD
Contact Maximum Ac Voltage Rating450.0 SINGLE MATING END SINGLE CONTACT GROUPING
Board Accommodated Length1.820 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED
Included Contact TypeSPRING PINCERS SINGLE MATING END SINGLE CONTACT GROUPING
Precious MaterialGOLD
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Terminal TypeTAB, SOLDER LUG SINGLE MATING END SINGLE CONTACT GROUPING
Contact Maximum Dc Voltage Rating625.0 SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity21 SINGLE MATING END SINGLE CONTACT GROUPING
Board Accommodated Width0.082 INCHES NOMINAL
Vendor Part Numbers514684-1
Cancelled NSN5935-00-583-8368 (cancelled)
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 KM21S available?
We can source KM21S 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 KM21S by Winchester Interconnect Corporation obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If KM21S 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 KM21S?
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 KM21S?
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.