Waveline Inc. · Electronic Components
20728
Waveguide Assembly
Part Number20728
ManufacturerWaveline Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-380-9987 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Waveguide Inside Width2.840 INCHES NOMINAL
MaterialALUMINUM ALLOY 6061 SINGLE TUBING SEGMENT AND FLANGE
Waveguide Inside Height1.340 INCHES NOMINAL
Flange Quantity1
Flange Connecting Hole Diameter0.250 INCHES NOMINAL SINGLE FLANGE ALL CONNECTION FACILITIES
Style DesignatorSTRAIGHT TYPE
Flange Connecting Facility And Qua8 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES
Waveguide Length9.90625 INCHES MAXIMUM
Waveguide Outside Width3.000 INCHES NOMINAL
FlexibilityRIGID SINGLE TUBING SEGMENT
Flange Outside Diameter5.313 INCHES NOMINAL SINGLE FLANGE
Vendor Part Numbers1213659-201
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 20728 available?
We can source 20728 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 20728 by Waveline Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 20728 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 20728?
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 20728?
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.