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Northrop Grumman Systems Corp.  · Electronic Components

A10251B

Insulator, Plate

Part NumberA10251B
ManufacturerNorthrop Grumman Systems Corp.
AvailabilityAvailable to order — request a quote

Specifications

Federal Item NameINSULATOR,PLATE
Federal Supply Class5970 — Electrical Insulators
Second Hole Spacing0.219 INCHES NOMINAL
First Hole Spacing0.484 INCHES NOMINAL
Third Hole Spacing3.250 INCHES NOMINAL
Fourth Hole Spacing0.562 INCHES NOMINAL
MaterialPLASTIC TETRAFLUOROETHYLENE OVERALL
First Hole Diameter0.123 INCHES MINIMUM AND 0.124 INCHES MAXIMUM
Style DesignatorFLAT, RECTANGULAR
Overall Length4.250 INCHES NOMINAL
Overall Width1.000 INCHES NOMINAL
Overall Height0.155 INCHES MINIMUM AND 0.159 INCHES MAXIMUM
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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

Frequently asked

Is A10251B available?
We can source A10251B 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 A10251B by Northrop Grumman Systems Corp. obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If A10251B 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 A10251B?
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 A10251B?
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.