Fm Af, LLC · Electronic Components
1387876
Insulator, Bushing
Part Number1387876
ManufacturerFm Af, LLC
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-138-4048 (NSN)
Federal Item NameINSULATOR,BUSHING
Federal Supply Class5970 — Electrical Insulators
Shank Height0.250 INCHES NOMINAL
Material Document And ClassificatiMIL-P-15035, TYPE FBG MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Mounting Bolt Circle Diameter4.000 INCHES NOMINAL
MaterialPLASTIC PHENOLIC AND COTTON OVERALL
Inside Diameter3.001 INCHES MINIMUM AND 3.005 INCHES MAXIMUM
Countersink Angle In Deg45.0
Outside Diameter5.250 INCHES NOMINAL
Overall Height0.375 INCHES NOMINAL
Shank Outside Diameter3.247 INCHES MINIMUM AND 3.250 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 1387876 available?
We can source 1387876 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 1387876 by Fm Af, LLC obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 1387876 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 1387876?
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 1387876?
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.