MIL-SPEC · Electronic Components
M287/3-43-0140
Waveguide Assembly
Part NumberM287/3-43-0140
ManufacturerMIL-SPEC
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-434-8985 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Thread DirectionRIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES
Flange Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM FIRST FLANGE
Waveguide Outside Width0.996 INCHES MINIMUM AND 1.004 INCHES MAXIMUM
Style DesignatorSTRAIGHT TYPE
Flange Outside Height1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM SECOND FLANGE
FSC Application DataANTENNAS,WAVEGUIDES,AND RELATED EQUIPMENT
Waveguide Length1.167 FEET NOMINAL
Flange StyleCOVER TYPE SECOND FLANGE
MaterialCOPPER ALLOY ALL TUBING SEGMENT AND FLANGE
FlexibilityFLEXIBLE SINGLE TUBING SEGMENT
Waveguide Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM
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 M287/3-43-0140 available?
We can source M287/3-43-0140 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 M287/3-43-0140 by MIL-SPEC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If M287/3-43-0140 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 M287/3-43-0140?
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 M287/3-43-0140?
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.