Amphenol · Electronic Components
21-203722-55S
Connector, Receptacle, Electrical
Part Number21-203722-55S
ManufacturerAmphenol
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-445-8030 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Contact Position Arrangement Style22-55 SINGLE MATING END
Distance From Mounting Shoulder To0.839 INCHES MINIMUM AND 0.889 INCHES MAXIMUM
Overall Length1.700 INCHES MAXIMUM
Body StyleSTRAIGHT SHAPE THREADED
Terminal TypeSOLDER WELL SINGLE MATING END SINGLE CONTACT GROUPING
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity55 SINGLE MATING END SINGLE CONTACT GROUPING
Mating End Quantity1
Mounting Facility Thickness0.062 INCHES MINIMUM AND 0.250 INCHES MAXIMUM
Overall Diameter2.052 INCHES MINIMUM AND 2.073 INCHES MAXIMUM
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 21-203722-55S available?
We can source 21-203722-55S 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 21-203722-55S by Amphenol obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 21-203722-55S 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 21-203722-55S?
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 21-203722-55S?
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.