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US Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir · Electronic Components
SM-B-683716
Adapter, Waveguide
Part NumberSM-B-683716
ManufacturerUS Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-490-5800 (NSN)
Federal Item NameADAPTER,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
Coaxial Connector Series DesignatiN
Style DesignatorWAVEGUIDE TO COAXIAL
Voltage Standing Wave Ratio1.25
MaterialALUMINUM ALLOY ALL FLANGE
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Flange Outside Diameter3.625 INCHES NOMINAL ALL FLANGES
Flange Quantity1
Connector End DesignFEMALE
Flange Depth0.375 INCHES NOMINAL ALL FLANGES
Adapter Length3.000 INCHES NOMINAL
Flange Inside Width2.002 INCHES MINIMUM AND 2.005 INCHES MAXIMUM ALL FLANGES
Vendor Part NumbersUG1883GRC
ESD/EMICode A — ESD/EMI sensitive item
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-B-683716 available?
We can source SM-B-683716 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-B-683716 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-B-683716 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-B-683716?
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-B-683716?
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.