Us Army Aviation And Missile Command · Electronic Components
9999404
Waveguide Assembly
Part Number9999404
ManufacturerUs Army Aviation And Missile Command
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-913-2485 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange Quantity2
Waveguide Outside Height3.625 INCHES NOMINAL
Operating Pressure25.0 POUNDS PER SQUARE INCH GAUGE (PSIG) MAXIMUM
Waveguide Inside Height3.250 INCHES NOMINAL
Flange Connecting Facility And Qua10 UNTHREADED HOLE(S) ALL FLANGES SINGLE CONNECTION FACILITY
Flange Outside Width8.631 INCHES MINIMUM AND 8.745 INCHES MAXIMUM ALL FLANGES
Waveguide Inside Width6.500 INCHES NOMINAL
Waveguide Length2.000 FEET NOMINAL
Flange Depth0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM ALL FLANGES
Voltage Standing Wave Ratio1.05
MaterialALUMINUM ALLOY 6061 ALL FLANGE
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 9999404 available?
We can source 9999404 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 9999404 by Us Army Aviation And Missile Command obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 9999404 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 9999404?
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 9999404?
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.