Penn Engineering Components · Electronic Components
257CF
Waveguide Assembly
Part Number257CF
ManufacturerPenn Engineering Components
AvailabilityAvailable to order — request a quote
Specifications
NSN5985-01-332-6622 (NSN)
Federal Item NameWAVEGUIDE ASSEMBLY
Federal Supply Class5985 — Antennas and Waveguides
Flange StyleCHOKE TYPE FIRST FLANGE
Bend Angle In Deg90.0 SINGLE BEND H-PLANE
Voltage Standing Wave Ratio1.05
Flange Connecting Facility And Qua4 THREADED HOLE(S) FIRST FLANGE ALL CONNECTION FACILITIES
Thread DirectionRIGHT-HAND FIRST FLANGE ALL CONNECTION FACILITIES
Flange Outside Width1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM SECOND FLANGE
Flange Outside Height1.860 INCHES MINIMUM AND 1.890 INCHES MAXIMUM FIRST FLANGE
Thread Class2B FIRST FLANGE ALL CONNECTION FACILITIES
Flange Quantity2
Flange Depth0.423 INCHES MINIMUM AND 0.453 INCHES MAXIMUM SECOND FLANGE
Flange Inside Width1.253 INCHES MINIMUM SECOND 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 257CF available?
We can source 257CF 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 257CF by Penn Engineering Components obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 257CF 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 257CF?
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 257CF?
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.