Winchester Interconnect · Electronic Components
21-20SS
Connector, Receptacle, Electrical
Part Number21-20SS
ManufacturerWinchester Interconnect
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-666-4642 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Contact Maximum Current Rating In5.0 SINGLE MATING END SINGLE CONTACT GROUPING
Nominal Thread Length0.234 INCHES
Overall Width0.812 INCHES NOMINAL
Connector Locking MethodSCREW
Center To Center Distance Between1.937 INCHES NOMINAL
Included Contact Quantity21 SINGLE MATING END SINGLE CONTACT GROUPING
Threaded Device TypeMOUNTING STUD
Overall Length2.250 INCHES NOMINAL
Overall Height0.375 INCHES NOMINAL
Mating End Quantity1
Contact Maximum Dc Voltage Rating250.0 SINGLE MATING END SINGLE CONTACT GROUPING
Cancelled NSN5935-00-080-9897 (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 21-20SS available?
We can source 21-20SS 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 21-20SS by Winchester Interconnect obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21-20SS 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 21-20SS?
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 21-20SS?
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.