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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-A-778230-2
Waveguide Assembly
Part NumberSM-A-778230-2
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-124-5250 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange Inside Diameter1.610 INCHES MINIMUM AND 1.640 INCHES MAXIMUM FIRST FLANGE
Flange Outside Height1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM SECOND FLANGE
Thread DirectionRIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES
Flange Connecting Hole Diameter0.169 INCHES MINIMUM AND 0.172 INCHES MAXIMUM SECOND FLANGE ALL CONNECTION FACILITIES
Flange Connecting Facility And Qua4 THREADED HOLE(S) FIRST FLANGE ALL CONNECTION FACILITIES
Flange Outside Width1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM FIRST FLANGE
Voltage Standing Wave Ratio1.05
MaterialCOPPER ALLOY SINGLE TUBING SEGMENT
Flange StyleCHOKE TYPE FIRST FLANGE
Flange Depth0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM SECOND FLANGE
Waveguide Inside Width1.122 INCHES NOMINAL
Vendor Part NumbersAS7C112-4.25
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-778230-2 available?
We can source SM-A-778230-2 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-778230-2 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-778230-2 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-778230-2?
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-778230-2?
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.