Us Army Aviation And Missile Command · Electronic Components
9991927
Waveguide Assembly
Part Number9991927
ManufacturerUs Army Aviation And Missile Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-919-9211 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange Inside Height1.502 INCHES MINIMUM AND 1.505 INCHES MAXIMUM ALL FLANGES
MaterialALUMINUM ALLOY 6061 ALL FLANGE
Flange StyleCONTACT TYPE ALL FLANGES
Flange Outside Height2.980 INCHES MINIMUM FIRST FLANGE
Waveguide Length30.711 INCHES MINIMUM AND 30.731 INCHES MAXIMUM
Waveguide Inside Height1.503 INCHES NOMINAL
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
Flange Outside Width4.480 INCHES MINIMUM AND 4.520 INCHES MAXIMUM ALL FLANGES
Flange Quantity2
Flange Depth0.320 INCHES MINIMUM AND 0.360 INCHES MAXIMUM ALL FLANGES
Flange Inside Width3.002 INCHES MINIMUM AND 3.005 INCHES MAXIMUM ALL FLANGES
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 9991927 available?
We can source 9991927 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 9991927 by Us Army Aviation And Missile Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 9991927 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 9991927?
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 9991927?
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.