MIL-SPEC · Electronic Components
M28876/1C1S5N
Connector, Receptacle, Fiber Optic
Part NumberM28876/1C1S5N
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN6060-01-521-9553 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,FIBER OPTIC
Federal Supply Class6060 — Fiber Optic Interconnectors
Overall Width1.236 INCHES MINIMUM AND 1.278 INCHES MAXIMUM
Unthreaded Mounting Hole Diameter0.115 INCHES MINIMUM AND 0.130 INCHES MAXIMUM
Environmental ProtectionWEATHER RESISTANT
Contact RemovabilityREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING
Insert Position In Deg119.0
Polarization MethodKEYWAY OR MULTIPLE KEYWAY
Shell MaterialALUMINUM ALLOY OR STEEL CORROSION RESISTING
Test Data Document81349-MIL-C-28876 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DA
Shell Surface TreatmentCADMIUM OR PASSIVATE
Insert MaterialRUBBER FLUOROSILICONE CLASS FQ SINGLE MATING END
Operating Temp Rating-54.0 CELSIUS MINIMUM AND 65.0 CELSIUS 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 M28876/1C1S5N available?
We can source M28876/1C1S5N 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 M28876/1C1S5N by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M28876/1C1S5N 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 M28876/1C1S5N?
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 M28876/1C1S5N?
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.