MIL-SPEC · Electronic Components
M28748/4-A40L1A
Insert, Electrical Connector
Part NumberM28748/4-A40L1A
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-317-9335 (NSN)
Federal Item NameINSERT,ELECTRICAL CONNECTOR
Federal Supply Class5935 — Connectors, Electrical
Thread DirectionRIGHT-HAND
Precious Material And LocationCONTACT SURFACES GOLD
Mating End Quantity1
Threaded Device TypeCOUPLING FACILITY
Thread Quantity Per Inch32
Contact Surface TreatmentGOLD AND NICKEL SINGLE MATING END SINGLE CONTACT GROUPING
Overall Length1.204 INCHES MINIMUM AND 1.236 INCHES MAXIMUM
Overall Height1.970 INCHES MAXIMUM
Test Data Document81349-MIL-C-28748 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Nominal Thread Length0.320 INCHES
Overall Width0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM
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 M28748/4-A40L1A available?
We can source M28748/4-A40L1A 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 M28748/4-A40L1A by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M28748/4-A40L1A 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 M28748/4-A40L1A?
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 M28748/4-A40L1A?
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.