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Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier · Electronic Components
639AS3870
Tape, Insulation, Electrical
Part Number639AS3870
ManufacturerNaval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-325-1448 (NSN)
Federal Item NameTAPE,INSULATION,ELECTRICAL
Federal Supply Class5970 — Electrical Insulators
ColorNATURAL OVERALL
Core Nominal Diameter3.000 INCHES
Adhesive LocationONE SIDE
MaterialCOPPER OR ALUMINUM OVERALL
Adhesive TypePRESSURE SENSITIVE
Nominal Width0.625 INCHES
Nominal Length18.0 YARDS
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 639AS3870 available?
We can source 639AS3870 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 639AS3870 by Naval Air Systems Command Managed Original Design Activity Not Material/Parts Supplier obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 639AS3870 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 639AS3870?
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 639AS3870?
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.