PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 3581/20
3581/20 ✓ 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 3581/20 is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-01-131-8198, 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
3581/20
NSN: 6145-01-131-8198
FSC: 6145
CAGE: 92194 — BELDEN, INC. (USA)
SPECIFICATIONS
Part Number3581/20
NSN6145-01-131-8198
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 3581/20 · 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
•
VOLTAGE RATING: 300.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
•
STRAND AWG SIZE PER CONDUCTOR: 36 ALL CONDUCTORS
•
CONDUCTOR FORM: STRANDED ALL CONDUCTORS
•
ROUND CONDUCTOR SIZE: 28 AWG ALL CONDUCTORS
•
SURFACE TREATMENT: TIN CORE CONDUCTOR ALL CONDUCTORS
•
STRAND QUANTITY PER CONDUCTOR: 7 ALL CONDUCTORS
•
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
•
CROSS-SECTIONAL WIDTH: 1.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
VOLTAGE RATING300.0 MAXIMUM ROOT MEAN SQUARE (RMS) OPERATING VOLTAGE ALL CONDUCTORS
STRAND AWG SIZE PER CONDUCTOR36 ALL CONDUCTORS
CONDUCTOR FORMSTRANDED ALL CONDUCTORS
ROUND CONDUCTOR SIZE28 AWG ALL CONDUCTORS
SURFACE TREATMENTTIN CORE CONDUCTOR ALL CONDUCTORS
STRAND QUANTITY PER CONDUCTOR7 ALL CONDUCTORS
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
CROSS-SECTIONAL WIDTH1.000 INCHES NOMINAL IN
CROSS-SECTIONAL HEIGHT0.042 INCHES NOMINAL IN
MATERIALCOPPER CORE CONDUCTOR ALL CONDUCTORS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
1-015-1156Interchangeable
interchangeable cross-reference
interchangeable
MJE3055Interchangeable
interchangeable cross-reference
interchangeable
3583/20Interchangeable
Same NIIN cross-reference
interchangeable
7100162425Interchangeable
Same NIIN cross-reference
interchangeable
3302/20Interchangeable
Same NIIN cross-reference
interchangeable
3302-20Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3581/20?
3581/20 is a 3581/20.
What parts can replace 3581/20?
There are 8 known substitutes for 3581/20: 1-015-1156, MJE3055, 3583/20 and 5 more. Substitute compatibility should be verified for your specific system.
Is 3581/20 still available?
3581/20 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026