MIL-SPEC · Electronic Components
M55302/128-AJ1B
Part NumberM55302/128-AJ1B
ManufacturerMIL-SPEC
AvailabilityIn stock — ships fast
Specifications
NSN5935-01-243-4060 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Terminal TypePIN SINGLE MATING END SINGLE CONTACT GROUPING
Overall Length1.030 INCHES NOMINAL
Overall Width0.325 INCHES NOMINAL
Body StyleRIGHT ANGLE TYPE
Precious MaterialGOLD
Precious Material LocationCONTACT SURFACES GOLD
Special FeaturesOPTIONAL KEYING PLUG MAY BE USED FOR POLARIZATION
Contact Arrangement2 ROWS OF CONTACTS NON-INSERTED BOARD SINGLE MATING END
Included Contact Quantity20 SINGLE MATING END SINGLE CONTACT GROUPING
Body Height0.238 INCHES NOMINAL
Federal Supply Class5935 — Connectors, Electrical
Contact Surface Treatment DocumentMIL-G-45204,TY 2,CL 1,GRADE C MIL SPEC 1ST TREATMENT RESPONSE AND QQ-N-290,CL 2 FED SPEC 2ND TREATMENT RESPONSE SINGLE
Precious Material And LocationCONTACT SURFACES GOLD
Test Data Document81349-MIL-C-55302 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Precious Material And Weight0.020 GOLD GRAINS, TROY
Contact Material Document And ClasQQ-C-530 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OR QQ-B-750 FED SPEC SINGLE M
Insert MaterialPLASTIC DIALLYL PHTHALATE AND GLASS FIBER AND PLASTIC POLYESTER AND GLASS FIBER AND PLASTIC POLYPHENYLENE AND GLASS
Included Contact TypeFLAT SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
Cancelled NSN5935-01-418-8525 (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 M55302/128-AJ1B in stock?
Yes — M55302/128-AJ1B is in our stock database. Request a quote for current pricing and lead time.
Is M55302/128-AJ1B by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M55302/128-AJ1B 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 M55302/128-AJ1B?
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 M55302/128-AJ1B?
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.