Microwave Development Laboratories · Electronic Components
90WU1239
Waveguide Assembly
Part Number90WU1239
ManufacturerMicrowave Development Laboratories
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-396-9763 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Waveguide Inside Height0.396 INCHES MINIMUM AND 0.404 INCHES MAXIMUM
FlexibilityRIGID SINGLE TUBING SEGMENT
Waveguide Outside Height0.496 INCHES MINIMUM AND 0.504 INCHES MAXIMUM
Waveguide Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM
Waveguide Outside Width0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM
Cross Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Flange Quantity2
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 90WU1239 available?
We can source 90WU1239 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 90WU1239 by Microwave Development Laboratories obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 90WU1239 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 90WU1239?
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 90WU1239?
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.