MIL-SPEC · Electronic Components
MS3128E22-21S
Connector, Receptacle, Electrical
Part NumberMS3128E22-21S
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-904-1209 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Center To Center Distance Between1.250 INCHES NOMINAL
Unthreaded Mounting Hole Diameter0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM
Overall Length1.709 INCHES MAXIMUM
Included Contact TypeROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
Connector Locking MethodBAYONET PIN
Shell Surface TreatmentCADMIUM
Contact Maximum Ac Voltage Rating1000.0 SINGLE MATING END SINGLE CONTACT GROUPING
Terminal TypeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
Contact Position Arrangement Style22-21 SINGLE MATING END
Polarization MethodKEY, MULTIPLE KEY GROOVE
Shell TypeSOLID
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 MS3128E22-21S available?
We can source MS3128E22-21S 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 MS3128E22-21S by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS3128E22-21S 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 MS3128E22-21S?
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 MS3128E22-21S?
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.