PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20827Wire Unwrapping Tool

A.w. Mack Manufacturing Co., Inc. · NSN 5120-00-978-3494 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-978-3494 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-978-3494. Primary manufacturer part number: 20827.
Features
  • Wire Unwrapping Tool — FSC 5120
  • General Characteristics Item Description: FOR 20 TO 26 AWG WIRE; 0.070 IN. (1.77MM) TERMINAL HOLE DIA; 2.36 IN. (60MM) TERMINAL HOLE DEPTH; LEFT HAND UNWRAPPING MM
  • 8 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 5120-00-978-3494, 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 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-978-3494
Primary Part Number20827
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; 0.070 IN. (1.77MM) TERMINAL HOLE DIA; 2.36 IN. (60MM) TERMINAL HOLE DEPTH; LEFT HAND UNWRAPPING MM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5935-00-257-9081108-740-1 INTERCHANGEABLE
Jack,tip
Viking Technologies, Ltd.
6550-00-443-4522 INTERCHANGEABLE
Culture Medium,american Trudeau
5930-00-691-2324 INTERCHANGEABLE
Switch Section,rotary
4720-01-032-974420827 INTERCHANGEABLE
Hose,preformed
Gates Corporation
3040-01-040-5331 INTERCHANGEABLE
Parts Kit,cylinder
5330-01-086-845274914282-4 INTERCHANGEABLE
Gasket Set
Kalmar AC Inc
5330-01-137-504120827 INTERCHANGEABLE
Gasket
General Fire Extinguisher Corp
5355-01-233-0520208-27 INTERCHANGEABLE
Knob
Valad Electric Heating Corp.
4320-01-240-3154 INTERCHANGEABLE
Motor,hydraulic
6625-01-483-0929UW-4 INTERCHANGEABLE
Wattmeter
Biotek Instruments, Inc. Dba Biotek Div Bio-Tek Instruments Llc Dba Biotek Instruments Inc.
Cross-Reference Index
Part NumberManufacturer
UW4 Jonard Industries Corporation Dba Jonard Tools (USA)
118-062 Stanley Supply & Services Inc. (USA)
KS20827L1 American Telephone and Telegraph Co (USA)
122X725 Specialized Products Company Dba Specialized Products Co (USA)
KS16492L2 American Telephone and Telegraph Co (USA)
20827 PRIMARY A.w. Mack Manufacturing Co., Inc. (USA)
KS20827L1 PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
UW4 O K Intl Inc (USA)
Related Parts
5935-00-257-9081INTERCHANGEABLE
JACK,TIP
108-740-1
6550-00-443-4522INTERCHANGEABLE
CULTURE MEDIUM,AMERICAN TRUDEAU
5930-00-691-2324INTERCHANGEABLE
SWITCH SECTION,ROTARY
4720-01-032-9744INTERCHANGEABLE
HOSE,PREFORMED
20827
3040-01-040-5331INTERCHANGEABLE
PARTS KIT,CYLINDER
5330-01-086-8452INTERCHANGEABLE
GASKET SET
74914282-4
5330-01-137-5041INTERCHANGEABLE
GASKET
20827
5355-01-233-0520INTERCHANGEABLE
KNOB
208-27
4320-01-240-3154INTERCHANGEABLE
MOTOR,HYDRAULIC
6625-01-483-0929INTERCHANGEABLE
WATTMETER
UW-4
5340-01-725-8296INTERCHANGEABLE
MOUNT,RESILIENT,UTILITY
118062

Frequently Asked Questions

What is NSN 5120-00-978-3494?

NSN 5120-00-978-3494 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 5120-00-978-3494?

NSN 5120-00-978-3494 has 8 cross-referenced part numbers: UW4 (Jonard Industries Corporation Dba Jonard Tools), 118-062 (Stanley Supply & Services Inc.), KS20827L1 (American Telephone and Telegraph Co), 122X725 (Specialized Products Company Dba Specialized Products Co), KS16492L2 (American Telephone and Telegraph Co) and 3 more.

What NSN replaces 5120-00-978-3494?

There are 11 known substitutes for 5120-00-978-3494: 5935-00-257-9081, 6550-00-443-4522, 5930-00-691-2324 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20827?

Key specifications for 20827: General Characteristics Item Description: FOR 20 TO 26 AWG WIRE; 0.070 IN. (1.77MM) TERMINAL HOLE DIA; 2.36 IN. (60MM) TERMINAL HOLE DEPTH; LEFT HAND UNWRAPPING MM; Overall Length: 5.500 INCHES NOMINAL IN. 2 total characteristics are documented in the Federal Logistics Information System.

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