PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AWM-51187LWire Unwrapping Tool

A.w. Mack Manufacturing Co., Inc. · NSN 5120-01-107-3984 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-107-3984 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-107-3984. Primary manufacturer part number: AWM-51187L.
Features
  • Wire Unwrapping Tool — FSC 5120
  • General Characteristics Item Description: FOR 20 TO 26 AWG WIRE; 0.075 IN. (1.91MM) TERMINAL HOLE DIA; 1 IN. (25.4MM) TERMINAL HOLE DEPTH; LEFT HAND UNWRAPPING; 4-1/4 IN. HANDLE LG; 3/4 IN. BIT LENGTH MM
  • 4 verified cross-references
  • Primary manufacturer: A.w. Mack Manufacturing Co., Inc.
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
General Description

The Wire Unwrapping Tool, cataloged under National Stock Number 5120-01-107-3984, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is A.w. Mack Manufacturing Co., Inc.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-107-3984
Primary Part NumberAWM-51187L
Item NameWire Unwrapping Tool
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerA.w. Mack Manufacturing Co., Inc.
StatusACTIVE
General Characteristics Item DescriptionFOR 20 TO 26 AWG WIRE; 0.075 IN. (1.91MM) TERMINAL HOLE DIA; 1 IN. (25.4MM) TERMINAL HOLE DEPTH; LEFT HAND UNWRAPPING; 4-1/4 IN. HANDLE LG; 3/4 IN. BIT LENGTH MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5905-00-577-7336 INTERCHANGEABLE
Resistor,variable,wire Wound,non
6750-01-427-4740 INTERCHANGEABLE
Film,photographic
Cross-Reference Index
Part NumberManufacturer
501875 Apex Tool Group (USA)
501875 Apex Tool Group, Llc (USA)
AWM-51187L PRIMARY A.w. Mack Manufacturing Co., Inc. (USA)
501875 Cooper Industries Inc Dba Cooper Tools (USA)
Related Parts
5905-00-577-7336INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
6750-01-427-4740INTERCHANGEABLE
FILM,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 5120-01-107-3984?

NSN 5120-01-107-3984 is a Wire Unwrapping Tool, manufactured by A.w. Mack Manufacturing Co., Inc., classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-107-3984?

NSN 5120-01-107-3984 has 4 cross-referenced part numbers: 501875 (Apex Tool Group), 501875 (Apex Tool Group, Llc), AWM-51187L (A.w. Mack Manufacturing Co., Inc.), 501875 (Cooper Industries Inc Dba Cooper Tools).

What NSN replaces 5120-01-107-3984?

There are 2 known substitutes for 5120-01-107-3984: 5905-00-577-7336, 6750-01-427-4740. Verify interchangeability with system specifications before substitution.

What are the specifications of AWM-51187L?

Key specifications for AWM-51187L: General Characteristics Item Description: FOR 20 TO 26 AWG WIRE; 0.075 IN. (1.91MM) TERMINAL HOLE DIA; 1 IN. (25.4MM) TERMINAL HOLE DEPTH; LEFT HAND UNWRAPPING; 4-1/4 IN. HANDLE LG; 3/4 IN. BIT LENGTH MM. 1 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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