Westinghouse Electric · Electronic Components
257B996-1
Insulator, Bushing
Part Number257B996-1
ManufacturerWestinghouse Electric
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-00-610-3700 (NSN)
Federal Item NameINSULATOR,BUSHING
Federal Supply Class5970 — Electrical Insulators
Overall Height2.625 INCHES NOMINAL2.625 INCHES NOMINAL
Top Diameter1.237 INCHES MINIMUM AND 1.237 INCHES MINIMUM AND 1.240 INCHES MAXIMUM1.240 INCHES MAXIMUM
MaterialPLASTIC POLYAMIDE NYLON OVERALLPLASTIC POLYAMIDE NYLON OVERALL
Outside Diameter1.500 INCHES MINIMUM AND 1.500 INCHES MINIMUM AND 1.503 INCHES MAXIMUM1.503 INCHES MAXIMUM
Vendor Part Numbers504D980ITEM4
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 257B996-1 available?
We can source 257B996-1 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 257B996-1 by Westinghouse Electric obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 257B996-1 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 257B996-1?
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 257B996-1?
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.