Ward Leonard Ct · Electronic Components
3997-3A
Insulator, Bushing
Part Number3997-3A
ManufacturerWard Leonard Ct
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-039-9725 (NSN)
Federal Item NameINSULATOR,BUSHING
Federal Supply Class5970 — Electrical Insulators
Overall Height0.688 INCHES NOMINAL
Shank Outside Diameter0.438 INCHES NOMINAL
Outside Diameter0.531 INCHES NOMINAL
MaterialOVERALL PLASTIC,FORMICA
Style DesignatorSHOULDER
Inside Diameter0.312 INCHES NOMINAL
Shank Height0.500 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 3997-3A available?
We can source 3997-3A 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 3997-3A by Ward Leonard Ct obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 3997-3A 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 3997-3A?
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 3997-3A?
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.