National Wire and Cable · Electronic Components
N303/4
Wire, Electrical
Part NumberN303/4
ManufacturerNational Wire and Cable
AvailabilityAvailable to order — request a quote
Specifications
NSN6145-01-533-4430 (NSN)
Federal Item NameWIRE,ELECTRICAL
Federal Supply Class6145 — Wire and Cable, Electrical
Strand Awg Size Per Conductor30 SINGLE CONDUCTOR
Conductor FormSTRANDED SINGLE CONDUCTOR
Temp Rating70.0 CELSIUS
Round Conductor Size4 AWG SINGLE CONDUCTOR
MaterialCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
Cross Section Outside Diameter0.430 INCHES NOMINAL
Material Document And ClassificatiASTM D 752 FED STD SINGLE MATERIAL RESPONSE CORE JACKET SINGLE CONDUCTOR
Cross Sectional Shape StyleROUND
Voltage Rating600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
Strand Quantity Per Conductor418 OR 437 SINGLE CONDUCTOR
ColorBLACK CORE JACKET SINGLE CONDUCTOR
Vendor Part Numbers6113, SM-A-949422-5
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 N303/4 available?
We can source N303/4 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 N303/4 by National Wire and Cable obsolete or end-of-life?
We specialize in obsolete, end-of-life, and discontinued components. If N303/4 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 N303/4?
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 N303/4?
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.