PartsTable
Technical Data Sheet
PartsTable / MRO / 1277-133
1277-133 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
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 1277-133 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 6145-00-140-8226, 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
MRO→ MRO_GENERAL→ 1277-133
NSN: 6145-00-140-8226
FSC: 6145
CAGE: 04379 — KAISER ALUMINUM AND CHEMICAL CORP WIRE AND CABLE DIV (USA)
SPECIFICATIONS
Part Number1277-133
NSN6145-00-140-8226
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 1277-133 · 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 SECTION OUTSIDE DIAMETER: 0.680 INCHES NOMINAL IN
•
CONDUCTOR QUANTITY: 6
•
VOLTAGE RATING: 600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
•
SURFACE TREATMENT: TIN CORE CONDUCTOR ALL CONDUCTORS
•
TEMP RATING: -65.0 FAHRENHEIT AND 165.0 FAHRENHEIT DEGF
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
•
ROUND CONDUCTOR SIZE: 16 AWG ALL CONDUCTORS
•
MATERIAL: COPPER CORE CONDUCTOR ALL CONDUCTORS
TECHNICAL CHARACTERISTICS (FLIS)
CROSS SECTION OUTSIDE DIAMETER0.680 INCHES NOMINAL IN
CONDUCTOR QUANTITY6
VOLTAGE RATING600.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
SURFACE TREATMENTTIN CORE CONDUCTOR ALL CONDUCTORS
TEMP RATING-65.0 FAHRENHEIT AND 165.0 FAHRENHEIT DEGF
CROSS-SECTIONAL SHAPE STYLEROUND
ROUND CONDUCTOR SIZE16 AWG ALL CONDUCTORS
MATERIALCOPPER CORE CONDUCTOR ALL CONDUCTORS
CONDUCTOR FORMSOLID ALL CONDUCTORS
MATERIALPLASTIC FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
1277133Upgraded Successor
successor cross-reference
successor
67-378Upgraded Successor
successor cross-reference
successor
87-202935-01Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1277-133?
1277-133 is a 1277-133. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1277-133?
There are 3 known substitutes for 1277-133: 1277133, 67-378, 87-202935-01. Substitute compatibility should be verified for your specific system.
What is the NSN for 1277-133?
1277-133 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-140-8226. 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