Mcmaster-Carr Supply · Electronic Components
7940A21
Wire, Electrical
Part Number7940A21
ManufacturerMcmaster-Carr Supply
AvailabilityAvailable to order — request a quote
Specifications
NSN6145-01-556-0152 (NSN)
Federal Item NameWIRE,ELECTRICAL
Federal Supply Class6145 — Wire and Cable, Electrical
ColorBLACK CORE JACKET SINGLE CONDUCTOR
Strand Awg Size Per Conductor259 SINGLE CONDUCTOR
Conductor FormSTRANDED SINGLE CONDUCTOR
Round Conductor Size6 AWG SINGLE CONDUCTOR
Strand Quantity Per Conductor30 SINGLE CONDUCTOR
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 7940A21 available?
We can source 7940A21 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 7940A21 by Mcmaster-Carr Supply obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If 7940A21 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 7940A21?
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 7940A21?
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.