MIL-SPEC · Electronic Components
M28876/12B12S2
Connector, Receptacle, Fiber Optic
Part NumberM28876/12B12S2
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN6060-01-698-5585 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,FIBER OPTIC
Federal Supply Class6060 — Fiber Optic Interconnectors
Insert Position In Deg0.0 AND 113.0 AND 156.0 AND 182.0 AND 292.0
Included Contact Quantity4 SINGLE MATING END SINGLE CONTACT GROUPING
Test Data Document81349-MIL-PRF-28876 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE
Shell TypeSOLID
Thread Quantity Per Inch20
Included Contact TypeROUND SOCKET SINGLE MATING END SINGLE CONTACT GROUPING
Contact RemovabilityREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Nominal Thread Size1.000 INCHES
Polarization MethodKEYWAY OR MULTIPLE KEYWAY
Threaded Device TypeBACK SHELL AND COUPLING FACILITY
Distance From Mounting Shoulder To1.013 INCHES MINIMUM AND 1.033 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 M28876/12B12S2 available?
We can source M28876/12B12S2 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 M28876/12B12S2 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M28876/12B12S2 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 M28876/12B12S2?
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 M28876/12B12S2?
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.