MIL-SPEC · Electronic Components
M287/4-01-0420
Waveguide Assembly
Part NumberM287/4-01-0420
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-049-7490 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange Connecting Hole Diameter0.328 INCHES NOMINAL FIRST FLANGE SINGLE CONNECTION FACILITY
Flange Connecting Facility And Qua10 UNTHREADED HOLE(S) FIRST FLANGE SINGLE CONNECTION FACILITY
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Insertion Loss In Decibels1.00
MaterialCOPPER ALLOY SINGLE TUBING SEGMENT
Flange Inside Width6.670 INCHES NOMINAL ALL FLANGES
Flange Depth1.000 INCHES NOMINAL ALL FLANGES
Surface TreatmentSILVER SINGLE TUBING SEGMENT INSIDE SURFACES
Flange Quantity2
Voltage Standing Wave Ratio1.05
Flange Outside Height2.719 INCHES NOMINAL ALL FLANGES
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 M287/4-01-0420 available?
We can source M287/4-01-0420 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 M287/4-01-0420 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M287/4-01-0420 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 M287/4-01-0420?
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 M287/4-01-0420?
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.