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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-B-977990
Connector, Receptacle, Electrical
Part NumberSM-B-977990
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-394-3404 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Contact Material Document And ClasMIL-C-55302 MIL SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END SINGLE CONTACT GROUPING
Body StyleSTRAIGHT TYPE
Unthreaded Mounting Hole Diameter0.120 INCHES NOMINAL
Distance Between Mounting Facility1.800 INCHES NOMINAL
Connector Locking MethodFRICTION
Contact Surface TreatmentGOLD SINGLE MATING END SINGLE CONTACT GROUPING
Contact Surface Treatment DocumentMIL-G-45204 MIL SPEC SINGLE TREATMENT RESPONSE AND MIL-C-55302 MIL SPEC SINGLE TREATMENT RESPONSE SINGLE MATING END SIN
Overall Height0.465 INCHES NOMINAL
Insert Material Document And ClassMIL-M-14, TYPE MFH MIL SPEC SINGLE MATERIAL RESPONSE SINGLE MATING END
Environmental ProtectionVIBRATION RESISTANT AND SHOCK RESISTANT AND SALT WATER RESISTANT AND HUMIDITY RESISTANT AND THERMAL SHOCK RESISTANT
Mating End Quantity1
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 SM-B-977990 available?
We can source SM-B-977990 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 SM-B-977990 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-B-977990 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 SM-B-977990?
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 SM-B-977990?
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.