MIL-SPEC · Electronic Components
UG556BU
Connector, Receptacle, Electrical
Part NumberUG556BU
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5935-00-724-3775 (NSN)
Federal Item NameCONNECTOR,RECEPTACLE,ELECTRICAL
Federal Supply Class5935 — Connectors, Electrical
Overall Diameter0.812 INCHES NOMINAL
Overall Length1.812 INCHES NOMINAL
Connector Locking MethodEXTERNALLY THREADED SHELL
Nominal Thread Size0.875 INCHES AND 0.625 INCHES
Radio Frequency Type Contact Chara50.0 SINGLE MATING END SINGLE CONTACT GROUPING
Thread Series DesignatorUNEF
Insert MaterialPLASTIC SINGLE MATING END
Shell MaterialCOPPER ALLOY
Included Contact Quantity1 SINGLE MATING END SINGLE CONTACT GROUPING
Included Contact TypeFLAT PIN SINGLE MATING END SINGLE CONTACT GROUPING
Threaded Device TypeCOUPLING FACILITY AND MOUNTING HOLE
Vendor Part NumbersREB49378REVA
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 UG556BU available?
We can source UG556BU 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 UG556BU by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If UG556BU 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 UG556BU?
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 UG556BU?
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.