Naval Sea Systems Command · Electronic Components
5187311
Waveguide Assembly
Part Number5187311
ManufacturerNaval Sea Systems Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-187-4969 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange StyleCOVER TYPE ALL FLANGES
MaterialALUMINUM ALLOY ALL TUBING SEGMENT AND FLANGE
Waveguide Inside Height0.372 INCHES MINIMUM AND 0.378 INCHES MAXIMUM
Waveguide Leg Length1.620 INCHES NOMINAL
Waveguide Longer Leg Length2.750 INCHES NOMINAL
Waveguide Center To Center Distanc1.630 INCHES NOMINAL
Style DesignatorU-BEND TYPE
Flange Connecting Facility And Qua4 UNTHREADED HOLE(S) ALL FLANGES ALL CONNECTION FACILITIES
Flange Quantity2
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Waveguide Outside Width0.847 INCHES MINIMUM AND 0.853 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 5187311 available?
We can source 5187311 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 5187311 by Naval Sea Systems Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5187311 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 5187311?
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 5187311?
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.