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Technical Data Sheet
PartsTable / COMPONENT / N303/6
N303/6 ✓ 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 N303/6 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 6145-01-174-8826, 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
N303/6
NSN: 6145-01-174-8826
FSC: 6145
CAGE: 04569 — NATIONAL WIRE AND CABLE CORPORATION DBA NATIONAL WIRE AND CABLE DIV NATIONAL CABLE MOLDING CORPORATION (USA)
SPECIFICATIONS
Part NumberN303/6
NSN6145-01-174-8826
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: N303/6 · 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
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
MATERIAL: COPPER CORE CONDUCTOR SINGLE CONDUCTOR
•
STRAND AWG SIZE PER CONDUCTOR: 30 SINGLE CONDUCTOR
•
VOLTAGE RATING: 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
•
CONDUCTOR FORM: STRANDED SINGLE CONDUCTOR
•
STRAND QUANTITY PER CONDUCTOR: 266 SINGLE CONDUCTOR
•
ROUND CONDUCTOR SIZE: 6 AWG SINGLE CONDUCTOR
•
COLOR: BLACK FIRST POSITION COVER SINGLE CONDUCTOR
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLEROUND
MATERIALCOPPER CORE CONDUCTOR SINGLE CONDUCTOR
STRAND AWG SIZE PER CONDUCTOR30 SINGLE CONDUCTOR
VOLTAGE RATING600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE SINGLE CONDUCTOR
CONDUCTOR FORMSTRANDED SINGLE CONDUCTOR
STRAND QUANTITY PER CONDUCTOR266 SINGLE CONDUCTOR
ROUND CONDUCTOR SIZE6 AWG SINGLE CONDUCTOR
COLORBLACK FIRST POSITION COVER SINGLE CONDUCTOR
CROSS SECTION OUTSIDE DIAMETER0.380 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
6112Upgraded Successor
successor cross-reference
successor
LLH389818Upgraded Successor
successor cross-reference
successor
901383-1Interchangeable
interchangeable cross-reference
interchangeable
7014Interchangeable
interchangeable cross-reference
interchangeable
954831Interchangeable
interchangeable cross-reference
interchangeable
8014Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N303/6?
N303/6 is a N303/6.
What parts can replace N303/6?
There are 21 known substitutes for N303/6: 6112, LLH389818, 901383-1 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N303/6?
N303/6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-174-8826. 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