PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

WT20UCable,special Purpose,electrical

Joint Electronics Type Designation System · NSN 6145-00-635-9957 · FSC 6145 · No Item Name Available
Verified by PartsTable
NSN 6145-00-635-9957 — this item is cataloged by the U.S. Government under National Stock Number 6145-00-635-9957. Primary manufacturer part number: WT20U.
Features
  • Cable,special Purpose,electrical — FSC 6145
  • Material: COPPER CORE CONDUCTOR ALL CONDUCTORS
  • Strand Quantity Per Conductor: 26 ALL CONDUCTORS
  • Conductor Form: STRANDED ALL CONDUCTORS
  • Cross Section Outside Diameter: 0.300 INCHES NOMINAL IN
  • Round Conductor Size: 20 AWG ALL CONDUCTORS
  • Conductor Arrangement and Quantity: 3 SINGLES
  • Strand Awg Size Per Conductor: 34 ALL CONDUCTORS
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Applications requiring Copper Core Conductor All Conductors construction
General Description

The Cable,special Purpose,electrical, cataloged under National Stock Number 6145-00-635-9957, is classified within Federal Supply Class 6145 (No Item Name Available) of the Electric Wire, Power, and Distribution Equipment group. The primary manufacturer of record is Joint Electronics Type Designation System. Government technical data includes 24 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN6145-00-635-9957
Primary Part NumberWT20U
Item NameCable,special Purpose,electrical
FSC / FSG6145 / 61 — No Item Name Available
ManufacturerJoint Electronics Type Designation System
StatusCANCELLED
MaterialCOPPER CORE CONDUCTOR ALL CONDUCTORS
Strand Quantity Per Conductor26 ALL CONDUCTORS
Conductor FormSTRANDED ALL CONDUCTORS
Cross Section Outside Diameter0.300 INCHES NOMINAL IN
Round Conductor Size20 AWG ALL CONDUCTORS
Conductor Arrangement and Quantity3 SINGLES
Strand Awg Size Per Conductor34 ALL CONDUCTORS
Material Document and ClassificationQQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
Conductor Quantity3
Cross-Sectional Shape StyleROUND
MaterialRUBBER BUTADIENE-STYRENE CLASS SBR FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
Surface TreatmentTIN CORE CONDUCTOR ALL CONDUCTORS
MaterialCOPPER CORE CONDUCTOR ALL CONDUCTORS
Strand Quantity Per Conductor26 ALL CONDUCTORS
Conductor FormSTRANDED ALL CONDUCTORS
Cross Section Outside Diameter0.300 INCHES NOMINAL IN
Round Conductor Size20 AWG ALL CONDUCTORS
Conductor Arrangement and Quantity3 SINGLES
Strand Awg Size Per Conductor34 ALL CONDUCTORS
Material Document and ClassificationQQ-W-343,SOFT FED SPEC SINGLE MATERIAL RESPONSE CORE CONDUCTOR ALL CONDUCTORS
Conductor Quantity3
Cross-Sectional Shape StyleROUND
MaterialRUBBER BUTADIENE-STYRENE CLASS SBR FIRST POSITION PRIMARY INSULATION ALL CONDUCTORS
Surface TreatmentTIN CORE CONDUCTOR ALL CONDUCTORS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
No Item Name Available
Cable,special Purpose,electrical
Cross-Reference Index
Part NumberManufacturer
WT20U PRIMARY Joint Electronics Type Designation System (USA)
MILC3883 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6145-00-184-3106SUCCESSOR
NO ITEM NAME AVAILABLE
6145-00-162-7915SUCCESSOR
CABLE,SPECIAL PURPOSE,ELECTRICAL

Frequently Asked Questions

What is NSN 6145-00-635-9957?

NSN 6145-00-635-9957 is a Cable,special Purpose,electrical, manufactured by Joint Electronics Type Designation System, classified under FSC 6145 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 6145-00-635-9957?

NSN 6145-00-635-9957 has 2 cross-referenced part numbers: WT20U (Joint Electronics Type Designation System), MILC3883 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 6145-00-635-9957?

There are 2 known substitutes for 6145-00-635-9957: 6145-00-184-3106, 6145-00-162-7915. Verify interchangeability with system specifications before substitution.

What are the specifications of WT20U?

Key specifications for WT20U: Material: COPPER CORE CONDUCTOR ALL CONDUCTORS; Strand Quantity Per Conductor: 26 ALL CONDUCTORS; Conductor Form: STRANDED ALL CONDUCTORS; Cross Section Outside Diameter: 0.300 INCHES NOMINAL IN. 24 total characteristics are documented in the Federal Logistics Information System.

Is NSN 6145-00-635-9957 still in active supply?

NSN 6145-00-635-9957 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com