MIL-SPEC · Electronic Components
MS3121E22-55SN
Connector, Plug, Electrical
Part NumberMS3121E22-55SN
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-761-4520 (NSN)
Federal Item NameCONNECTOR,PLUG,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Environmental ProtectionMOISTURE RESISTANT AND SALT WATER RESISTANT AND VIBRATION RESISTANT
Test Data Document81349-MIL-C-26482 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Contact Maximum Ac Voltage Rating600.0 SINGLE MATING END SINGLE CONTACT GROUPING
Shell Surface TreatmentCADMIUM
Terminal LocationBACK SINGLE MATING END SINGLE CONTACT GROUPING
Shell TypeSOLID
Contact RemovabilityREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Precious Material And Weight0.055 GOLD GRAINS, TROY
Polarization MethodKEY, MULTIPLE KEY GROOVE
Shell Surface Treatment Document AQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
Insert Position In Deg0.0
Vendor Part NumbersMS3121E22-55S
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 MS3121E22-55SN available?
We can source MS3121E22-55SN 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 MS3121E22-55SN by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If MS3121E22-55SN 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 MS3121E22-55SN?
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 MS3121E22-55SN?
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.