Seastrom Manufacturing Co Inc. · Electronic Components
5212-3
Insulator, Disk
Part Number5212-3
ManufacturerSeastrom Manufacturing Co Inc.
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-291-6997 (NSN)
Federal Item NameINSULATOR,DISK
Federal Supply Class5970 — Electrical Insulators
Second Hole Spacing0.200 INCHES NOMINAL
First Hole Spacing0.100 INCHES NOMINAL
Style DesignatorDRILLED, FLAT
MaterialMICA OVERALL
First Hole Diameter0.031 INCHES NOMINAL
Overall Height0.002 INCHES NOMINAL
Outside Diameter0.370 INCHES NOMINAL
Vendor Part Numbers461296-1
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 5212-3 available?
We can source 5212-3 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 5212-3 by Seastrom Manufacturing Co Inc. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 5212-3 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 5212-3?
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 5212-3?
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.