Microwave Engineering · Electronic Components
P340-389
Waveguide Assembly
Part NumberP340-389
ManufacturerMicrowave Engineering
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-358-9676 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange Connecting Hole Diameter0.169 INCHES NOMINAL ALL FLANGES ALL CONNECTION FACILITIES
Flange StyleCOVER TYPE SINGLE FLANGE
Flange Inside Width1.255 INCHES NOMINAL SINGLE FLANGE
Flange Quantity1
Tubing Wall Construction StyleSEAMLESS SINGLE TUBING SEGMENT
FlexibilityRIGID SINGLE TUBING SEGMENT
Waveguide Inside Height0.311 INCHES NOMINAL
Voltage Standing Wave Ratio1.05
Waveguide Inside Width0.622 INCHES NOMINAL
Flange Inside Height0.630 INCHES NOMINAL SINGLE FLANGE
Waveguide Outside Height0.391 INCHES NOMINAL
Vendor Part NumbersA34U90048-1
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 P340-389 available?
We can source P340-389 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 P340-389 by Microwave Engineering obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If P340-389 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 P340-389?
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 P340-389?
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.