MIL-SPEC · Electronic Components
M55302/66-40S
Connector, Receptacle, Electrical
Part NumberM55302/66-40S
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-085-6481 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Precious Material And LocationCONTACT SURFACES GOLD
Terminal TypeCRIMP SINGLE MATING END SINGLE CONTACT GROUPING
Thread Class2A AND 2B
Contact RemovabilityREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact Quantity40 SINGLE MATING END SINGLE CONTACT GROUPING
Nominal Thread Size0.086 INCHES
Precious Material And Weight0.040 GOLD GRAINS, TROY
Thread DirectionRIGHT-HAND
Test Data Document81349-MIL-C-55302 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Contact Maximum Current Rating In5.0 SINGLE MATING END SINGLE CONTACT GROUPING
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC)
Cancelled NSN5935-01-052-7235 (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 M55302/66-40S available?
We can source M55302/66-40S 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 M55302/66-40S by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M55302/66-40S 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 M55302/66-40S?
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 M55302/66-40S?
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.