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Technical Data Sheet
PartsTable / COMPONENT / N303/4
N303/4 ✓ Verified by PartsTable
— · WIRE CABLE
WHAT YOU NEED TO KNOW
Stranded for flexible routing, solid for conduit THHN/THWN dual-rated — check both tables
Ampacity depends on installation method
PRODUCT OVERVIEW

The N303/4 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-533-4430, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
N303/4
NSN: 6145-01-533-4430
FSC: 6145
CAGE: 04569 — NATIONAL WIRE AND CABLE CORPORATION DBA NATIONAL WIRE AND CABLE DIV NATIONAL CABLE MOLDING CORPORATION (USA)
SPECIFICATIONS
Part NumberN303/4
NSN6145-01-533-4430
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: N303/4 · OEM ⚠ VERIFY BEFORE ORDERING Ampacity depends on installation method — conduit ≠ free air ≠ underground. Same wire, different ratings. AWG sizing is inverse — smaller number = thicker wire (4 AWG > 12 AWG) ✓ BROKER TIP Stranded = flexible routing and vibration resistance. Solid = fixed conduit runs only. THHN/THWN = dual rated — check both dry and wet ampacity tables PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
STRAND AWG SIZE PER CONDUCTOR: 30 SINGLE CONDUCTOR
•
CONDUCTOR FORM: STRANDED SINGLE CONDUCTOR
•
TEMP RATING: 70.0 CELSIUS DEGC
•
ROUND CONDUCTOR SIZE: 4 AWG SINGLE CONDUCTOR
•
MATERIAL: COPPER CORE CONDUCTOR SINGLE CONDUCTOR
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D 752 FED STD SINGLE MATERIAL RESPONSE CORE JACKET SINGLE CONDUCTOR
TECHNICAL CHARACTERISTICS (FLIS)
STRAND AWG SIZE PER CONDUCTOR30 SINGLE CONDUCTOR
CONDUCTOR FORMSTRANDED SINGLE CONDUCTOR
TEMP RATING70.0 CELSIUS DEGC
END ITEM IDENTIFICATIONOA-9233A/G A
ROUND CONDUCTOR SIZE4 AWG SINGLE CONDUCTOR
MATERIALCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
MATERIALRUBBER NEOPRENE CORE JACKET SINGLE CONDUCTOR
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D 752 FED STD SINGLE MATERIAL RESPONSE CORE JACKET SINGLE CONDUCTOR
CROSS-SECTIONAL SHAPE STYLEROUND
CROSS SECTION OUTSIDE DIAMETER0.430 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
C91-736000Upgraded Successor
successor cross-reference
successor
6113Upgraded Successor
successor cross-reference
successor
7360-00Upgraded Successor
successor cross-reference
successor
NAVY 1993 1033Upgraded Successor
successor cross-reference
successor
LLH389819Upgraded Successor
successor cross-reference
successor
140-001-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N303/4?
N303/4 is a N303/4.
What parts can replace N303/4?
There are 20 known substitutes for N303/4: C91-736000, 6113, 7360-00 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N303/4?
N303/4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-533-4430. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026