Microwave Development · Electronic Components
74137-129
Adapter, Waveguide
Part Number74137-129
ManufacturerMicrowave Development
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-531-4425 (NSN)
Federal Item NameADAPTER,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
Waveguide Inside Height0.622 INCHES NOMINAL
Waveguide Inside Width1.372 INCHES NOMINAL
Waveguide Outside Width1.500 INCHES NOMINAL
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
MaterialCOPPER SINGLE TUBING SEGMENT AND FLANGE
Waveguide Outside Height0.750 INCHES NOMINAL
Adapter Height0.750 INCHES NOMINAL
Style DesignatorWAVEGUIDE TO COAXIAL
Adapter Length2.490 INCHES NOMINAL
Adapter Overall Height2.250 INCHES NOMINAL
Adapter Overall Width1.500 INCHES NOMINAL
Vendor Part NumbersA3188036-004
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 74137-129 available?
We can source 74137-129 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 74137-129 by Microwave Development obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 74137-129 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 74137-129?
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 74137-129?
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.