Narda Holdings · Electronic Components
645
Horn, Waveguide
Part Number645
ManufacturerNarda Holdings
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-033-9348 (NSN)
Federal Item NameHORN,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
MaterialALUMINUM ALLOY
Overall Width14.143 INCHES MINIMUM AND 14.263 INCHES MAXIMUM
Overall Height10.533 INCHES MINIMUM AND 10.653 INCHES MAXIMUM
Connection MethodWAVEGUIDE FLANGE
Overall Length16.721 INCHES MINIMUM AND 16.841 INCHES MAXIMUM
Accommodated Conductor TypeWAVEGUIDE
Frequency Range Rating+1.7 TO 2.6 GIGAHERTZ
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 645 available?
We can source 645 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 645 by Narda Holdings obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 645 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 645?
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 645?
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.