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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-A-803685-2
Waveguide Assembly
Part NumberSM-A-803685-2
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-374-4601 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Nominal Thread Size0.164 INCHES ALL FLANGES ALL CONNECTION FACILITIES
Waveguide Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM
Flange StyleCHOKE TYPE ALL FLANGES
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Thread DirectionRIGHT-HAND ALL FLANGES ALL CONNECTION FACILITIES
Flange Outside Width1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM ALL FLANGES
FlexibilityRIGID SINGLE TUBING SEGMENT
Flange Inside Width0.896 INCHES MINIMUM AND 0.904 INCHES MAXIMUM ALL FLANGES
Flange Quantity2
Waveguide Length1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM
Flange Connecting Facility And Qua4 THREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
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 SM-A-803685-2 available?
We can source SM-A-803685-2 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 SM-A-803685-2 by US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If SM-A-803685-2 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 SM-A-803685-2?
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 SM-A-803685-2?
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.