Grainger · Electronic Components
4E309
Tape, Insulation, Electrical
Part Number4E309
ManufacturerGrainger
AvailabilityAvailable to order — request a quote
Specifications
NSN5970-01-586-4391 (NSN)
Federal Item NameTAPE,INSULATION,ELECTRICAL
Federal Supply Class5970 — Electrical Insulators
ColorBLACK OVERALL
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
Nominal Length30.0 FEET
Nominal Width2.000 INCHES
Temp Rating160.0 FAHRENHEIT NOMINAL
ESD/EMICode A — ESD/EMI sensitive item
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 4E309 available?
We can source 4E309 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 4E309 by Grainger obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 4E309 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 4E309?
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 4E309?
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.