Seastrom Manufacturing Co Inc. · Electronic Components
5611-66-2
Insulator, Washer
Part Number5611-66-2
ManufacturerSeastrom Manufacturing Co Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-071-0677 (NSN)
Federal Item NameINSULATOR,WASHER
Federal Supply Class5970 — Electrical Insulators
Material And LocationOVERALL PLASTIC, POLYIMIDE, MIL-P-46112
Style DesignatorROUND, FLAT
Overall Height0.001 INCHES MINIMUM AND 0.003 INCHES MAXIMUM
Inside Diameter0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM
Outside Diameter0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM
Vendor Part Numbers40912, SM-B-890412, 633261-02
Cancelled NSN5970-01-165-9894 (cancelled)
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 5611-66-2 available?
We can source 5611-66-2 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 5611-66-2 by Seastrom Manufacturing Co Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5611-66-2 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 5611-66-2?
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 5611-66-2?
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.