Waveline Inc. · Electronic Components
674-3
Coupler, Directional
Part Number674-3
ManufacturerWaveline Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-822-8671 (NSN)
Federal Item NameCOUPLER,DIRECTIONAL
Federal Supply Class5985 — Antennas and Waveguides
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Identifying NumberTERMINAL FITTING TYPE NO. UG-39/U
Power Loss In Decibels3.0
Terminal Fitting Controlling AgencDEPARTMENT OF DEFENSE
Usage DesignMAIN LINE AND SECONDARY LINE TERMINAL FITTING
Unit TypeWAVEGUIDE
Design TypeBIDIRECTIONAL
Radio Frequency Rating8.2 GIGAHERTZ MINIMUM AND 12.4 GIGAHERTZ MAXIMUM
Overall Width2.500 INCHES NOMINAL
Overall Height1.500 INCHES NOMINAL
Overall Length17.500 INCHES NOMINAL
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 674-3 available?
We can source 674-3 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 674-3 by Waveline Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 674-3 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 674-3?
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 674-3?
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.