Seastrom Manufacturing · Electronic Components
5621-20-31
Insulator, Washer
Part Number5621-20-31
ManufacturerSeastrom Manufacturing
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-115-2994 (NSN)
Federal Item NameINSULATOR,WASHER
Federal Supply Class5970 — Electrical Insulators
Style DesignatorROUND, FLAT
Material Document And ClassificatiMIL-P-18177, TYPE GEE MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-I-24768/38 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialPLASTIC EPOXY AND FIBERGLASS OVERALL
Overall Height0.031 INCHES NOMINAL
Inside Diameter0.144 INCHES MINIMUM AND 0.154 INCHES MAXIMUM
Outside Diameter0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM
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 5621-20-31 available?
We can source 5621-20-31 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 5621-20-31 by Seastrom Manufacturing obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5621-20-31 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 5621-20-31?
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 5621-20-31?
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.