MIL-SPEC · Electronic Components
M287/4-45-0120
Waveguide Assembly
Part NumberM287/4-45-0120
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-011-3656 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange Depth0.438 INCHES NOMINAL ALL FLANGES
Flange Connecting Hole Diameter0.169 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES
Flange Outside Height1.625 INCHES NOMINAL ALL FLANGES
Flange Quantity2
Waveguide Outside Width1.000 INCHES NOMINAL
Voltage Standing Wave Ratio1.10
Waveguide Inside Height0.400 INCHES NOMINAL
Waveguide Outside Height0.500 INCHES NOMINAL
Insertion Loss In Decibels0.10
Flange Outside Width1.625 INCHES NOMINAL ALL FLANGES
Tubing Wall Construction StyleCONVOLUTE SINGLE TUBING SEGMENT
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 M287/4-45-0120 available?
We can source M287/4-45-0120 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 M287/4-45-0120 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M287/4-45-0120 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 M287/4-45-0120?
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 M287/4-45-0120?
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.