MIL-SPEC · Electronic Components
M28840/21CF1CBF1
Connector, Plug, Electrical
Part NumberM28840/21CF1CBF1
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-01-618-3877 (NSN)
Federal Item NameCONNECTOR,PLUG,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Thread Class2A
Thread DirectionRIGHT-HAND
Threaded Device TypeBACK SHELL AND COUPLING FACILITY
Mating End Quantity1
Overall Length7.938 INCHES MAXIMUM
Overall Diameter2.093 INCHES MAXIMUM
Cable Entrance Diameter0.812 INCHES MINIMUM AND 1.188 INCHES MAXIMUM
Body StyleSTRAIGHT SHAPE, EXTERNAL COUPLING W/BACKSHELL
Precious MaterialGOLD
Test Data Document81349-MIL-DTL-28840 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE
Connector Locking MethodEXTERNALLY THREADED SHELL
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 M28840/21CF1CBF1 available?
We can source M28840/21CF1CBF1 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 M28840/21CF1CBF1 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M28840/21CF1CBF1 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 M28840/21CF1CBF1?
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 M28840/21CF1CBF1?
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.