American Society for Testing and Materials · Electronic Components
D879-49
Insulator, Pin
Part NumberD879-49
ManufacturerAmerican Society for Testing and Materials
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-00-280-4948 (NSN)
Federal Item NameINSULATOR,PIN
Federal Supply Class5970 — Electrical Insulators
Pin Hole Depth1.563 INCHES NOMINAL
Second Distance Between Conductor1.594 INCHES NOMINAL
Style DesignatorCONICAL
Pinhole Diameter1.000 INCHES NOMINAL
First Radial Groove Width0.500 INCHES NOMINAL
Skirt Length1.375 INCHES NOMINAL
Conductor Separation Distance0.219 INCHES NOMINAL
Overall Height3.250 INCHES NOMINAL
Radial Groove Diameter1.716 INCHES NOMINAL
Outside Diameter2.438 INCHES NOMINAL
Second Radial Groove Width0.500 INCHES NOMINAL
Cancelled NSN5970-00-280-4949 (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 D879-49 available?
We can source D879-49 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 D879-49 by American Society for Testing and Materials obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If D879-49 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 D879-49?
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 D879-49?
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.