MIL-SPEC · Electronic Components
MS3100A28-21S
Connector, Receptacle, Electrical
Part NumberMS3100A28-21S
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-204-8925 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Body StyleSTRAIGHT SHAPE, EXTERNAL COUPLING W/BACKSHELL
Insert MaterialRUBBER SINGLE MATING END
Polarization MethodKEYWAY OR MULTIPLE KEYWAY
Threaded Device TypeBACK SHELL AND COUPLING FACILITY
Contact Surface Treatment DocumentMIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Shell MaterialALUMINUM ALLOY
Contact Maximum Dc Voltage Rating700.0 SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity37 SINGLE MATING END SINGLE CONTACT GROUPING
Contact Maximum Ac Voltage Rating500.0 SINGLE MATING END SINGLE CONTACT GROUPING
Thread Series DesignatorUNEF AND UNS
Shell Surface TreatmentCADMIUM
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 MS3100A28-21S available?
We can source MS3100A28-21S 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 MS3100A28-21S by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS3100A28-21S 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 MS3100A28-21S?
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 MS3100A28-21S?
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.