MIL-SPEC · Electronic Components
UG-340/U
Adapter, Waveguide
Part NumberUG-340/U
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-064-7103 (NSN)
Federal Item NameADAPTER,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
Flange Outside Width5.500 INCHES NOMINAL SINGLE FLANGE
Surface TreatmentSILVER SINGLE TUBING SEGMENT AND FLANGE ALL SURFACES
MaterialCOPPER ALLOY SINGLE FLANGE
Flange Connecting Facility And Qua5 CAPTIVE SCREW(S) SINGLE FLANGE ALL CONNECTION FACILITIES
Adapter Height4.000 INCHES NOMINAL
Precious MaterialSILVER
Waveguide Outside Height1.500 INCHES NOMINAL
Style DesignatorWAVEGUIDE TO COAXIAL
Connector End DesignMALE
Flange Outside Height4.000 INCHES NOMINAL SINGLE FLANGE
Flange Inside Height1.340 INCHES NOMINAL SINGLE FLANGE
Vendor Part NumbersRE-F2687256
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 UG-340/U available?
We can source UG-340/U 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 UG-340/U by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If UG-340/U 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 UG-340/U?
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 UG-340/U?
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.