PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J4255Puller,mechanical

The Stanley Works Dba Stanley Proto · NSN 5120-00-045-6536 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-045-6536 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-045-6536. Primary manufacturer part number: J4255.
Features
  • Puller,mechanical — FSC 5120
  • Style Designator: GEAR AND BEARING, SINGLE END GRIP THREE JAW, EXTERNAL
  • Spread Range: 5.000 INCHES MAXIMUM IN
  • Reach Length: 4.000 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: The Stanley Works Dba Stanley Proto
Applications
  • Field maintenance and repair
  • Facility maintenance operations
  • General-purpose hand tools
General Description

The Puller,mechanical, cataloged under National Stock Number 5120-00-045-6536, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The Stanley Works Dba Stanley Proto. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-045-6536
Primary Part NumberJ4255
Item NamePuller,mechanical
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusACTIVE
Style DesignatorGEAR AND BEARING, SINGLE END GRIP THREE JAW, EXTERNAL
Spread Range5.000 INCHES MAXIMUM IN
Reach Length4.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5905-00-123-526725953-2-13 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ward Leonard Ct Llc
5210-00-221-20915210-00-221-2091 INTERCHANGEABLE
Caliper,slide
General Services Administration Federal Supply Service
2520-00-337-7077J100B INTERCHANGEABLE
Universal Joint,vehicular
Altra Industrial Motion Corp.
5310-00-394-6439 INTERCHANGEABLE
Nut,plain,cap
2915-00-611-53724255 INTERCHANGEABLE
Diffuser Case Assy
Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
2520-01-040-83285-330X INTERCHANGEABLE
Spider,universal Joint,vehicular
Dana Corp Spicer Transmission Div
6240-01-260-22564255 INTERCHANGEABLE
Lamp,incandescent
Southern Ambulance Builders Co Inc Dba Sabc Inc
6515-01-554-5622SU2542 INTERCHANGEABLE
Forceps,tissue
Cardinal Health 200, Llc
Cross-Reference Index
Part NumberManufacturer
4255 Stanley-Proto Industrial Works Div of the Stanley Works (USA)
4255 The Stanley Works Dba Stanley Proto (USA)
4070C Stanley-Proto Industrial Works Div of the Stanley Works (USA)
J4255 PRIMARY The Stanley Works Dba Stanley Proto (USA)
Related Parts
5905-00-123-5267INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
25953-2-13
5210-00-221-2091INTERCHANGEABLE
CALIPER,SLIDE
5210-00-221-2091
2520-00-337-7077INTERCHANGEABLE
UNIVERSAL JOINT,VEHICULAR
J100B
5310-00-394-6439INTERCHANGEABLE
NUT,PLAIN,CAP
2915-00-611-5372INTERCHANGEABLE
DIFFUSER CASE ASSY
4255
2520-01-040-8328INTERCHANGEABLE
SPIDER,UNIVERSAL JOINT,VEHICULAR
5-330X
6240-01-260-2256INTERCHANGEABLE
LAMP,INCANDESCENT
4255
6515-01-554-5622INTERCHANGEABLE
FORCEPS,TISSUE
SU2542

Frequently Asked Questions

What is NSN 5120-00-045-6536?

NSN 5120-00-045-6536 is a Puller,mechanical, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-045-6536?

NSN 5120-00-045-6536 has 4 cross-referenced part numbers: 4255 (Stanley-Proto Industrial Works Div of the Stanley Works), 4255 (The Stanley Works Dba Stanley Proto), 4070C (Stanley-Proto Industrial Works Div of the Stanley Works), J4255 (The Stanley Works Dba Stanley Proto).

What NSN replaces 5120-00-045-6536?

There are 8 known substitutes for 5120-00-045-6536: 5905-00-123-5267, 5210-00-221-2091, 2520-00-337-7077 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J4255?

Key specifications for J4255: Special Features: 6 TON CAPACITY; REVERSIBLE JAWS; Style Designator: GEAR AND BEARING, SINGLE END GRIP THREE JAW, EXTERNAL; Spread Range: 5.000 INCHES MAXIMUM IN; Reach Length: 4.000 INCHES NOMINAL IN. 4 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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