Honeywell Intl Inc. Defense Avionics Systems Former Test Systems Div · Electronic Components
2131857-4
Adapter, Waveguide
Part Number2131857-4
ManufacturerHoneywell Intl Inc. Defense Avionics Systems Former Test Systems Div
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-00-506-6363 (NSN)
Federal Item NameADAPTER,WAVEGUIDE
Federal Supply Class5985 — Antennas and Waveguides
Flange Outside Height1.625 INCHES NOMINAL SINGLE FLANGE
Voltage Standing Wave Ratio1.25
Flange Depth0.438 INCHES NOMINAL SINGLE FLANGE
MaterialALUMINUM ALL TUBING SEGMENT AND FLANGE
Cross Sectional Shape StyleINTERNAL, RECTANGULAR EXTERNAL, RECTANGULAR
Flange Connecting Facility And Qua4 UNTHREADED HOLE(S) SINGLE FLANGE ALL CONNECTION FACILITIES
Adapter Overall Height1.532 INCHES MAXIMUM
Flange Quantity1
Waveguide Inside Width0.900 INCHES NOMINAL
Adapter Overall Width1.625 INCHES NOMINAL
Adapter Height1.625 INCHES NOMINAL
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 2131857-4 available?
We can source 2131857-4 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 2131857-4 by Honeywell Intl Inc. Defense Avionics Systems Former Test Systems Div obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 2131857-4 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 2131857-4?
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 2131857-4?
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.