PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J4056-4Jaw,mechanical Puller

The Stanley Works Dba Stanley Proto · NSN 5120-00-340-2010 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-340-2010 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-340-2010. Primary manufacturer part number: J4056-4.
Features
  • Jaw,mechanical Puller — FSC 5120
  • General Characteristics Item Description: SET OF 3;REVERSIBLE;STEEL;O/A LG 4.875 IN.;INSIDE RANGE 1.250 IN. MIN,2.875 IN. MAX;OUTSIDE RANGE 5.125 IN. MAX IN
  • 9 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 Jaw,mechanical Puller, cataloged under National Stock Number 5120-00-340-2010, 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 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-340-2010
Primary Part NumberJ4056-4
Item NameJaw,mechanical Puller
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
General Characteristics Item DescriptionSET OF 3;REVERSIBLE;STEEL;O/A LG 4.875 IN.;INSIDE RANGE 1.250 IN. MIN,2.875 IN. MAX;OUTSIDE RANGE 5.125 IN. MAX IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4820-00-019-26277161-4 INTERCHANGEABLE
Seat,valve
Woodward Hrt, Inc. Dba Woodward Hrt Inc
6680-00-138-894340564 INTERCHANGEABLE
Gage,liquid Quantity,float Type
Sullair Corp
3455-00-243-217911880 INTERCHANGEABLE
Cutter,milling,woodruff Keyseat
Niagara Cutter Inc
2990-00-337-0015040564 INTERCHANGEABLE
Sleeve Assembly,term Inal
Woodward, Inc.
5342-00-671-7802346964 INTERCHANGEABLE
Bracket,angle Assy
Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney
4730-00-966-650240-564 INTERCHANGEABLE
Plug,seal
Industrial Design Laboratories Inc
4820-01-058-56191C1092 INTERCHANGEABLE
Valve,check
Crissair Inc Div Esco Technologies
3455-01-063-8788CNMP-432 E-NN55 INTERCHANGEABLE
Insert,cutting Tool
Newcomer Products Inc
5330-01-130-3464 INTERCHANGEABLE
Gasket
6645-01-264-091434-698 INTERCHANGEABLE
Timer,interval
Miller Electric Mfg. Llc
Cross-Reference Index
Part NumberManufacturer
4056-4 The Stanley Works Dba Stanley Proto (USA)
4057J Stanley-Proto Industrial Works Div of the Stanley Works (USA)
960-1 Bosch Automotive Service Solutions Inc. (USA)
4056-4 Armstrong-Bray and Co Sub of Armstrong Bros Tool Co (USA)
71-614 Apex Tool Group, Llc Dba Nicholson (USA)
4056J Stanley-Proto Industrial Works Div of the Stanley Works (USA)
4057J Armstrong-Bray and Co Sub of Armstrong Bros Tool Co (USA)
J4056-4 PRIMARY The Stanley Works Dba Stanley Proto (USA)
34698 Bosch Automotive Service Solutions Inc. (USA)
Related Parts
4820-00-019-2627INTERCHANGEABLE
SEAT,VALVE
7161-4
6680-00-138-8943INTERCHANGEABLE
GAGE,LIQUID QUANTITY,FLOAT TYPE
40564
3455-00-243-2179INTERCHANGEABLE
CUTTER,MILLING,WOODRUFF KEYSEAT
11880
2990-00-337-0015INTERCHANGEABLE
SLEEVE ASSEMBLY,TERM INAL
040564
5342-00-671-7802INTERCHANGEABLE
BRACKET,ANGLE ASSY
346964
4730-00-966-6502INTERCHANGEABLE
PLUG,SEAL
40-564
4820-01-058-5619INTERCHANGEABLE
VALVE,CHECK
1C1092
3455-01-063-8788INTERCHANGEABLE
INSERT,CUTTING TOOL
CNMP-432 E-NN55
5330-01-130-3464INTERCHANGEABLE
GASKET
6645-01-264-0914INTERCHANGEABLE
TIMER,INTERVAL
34-698
4810-01-451-1795INTERCHANGEABLE
DISK,VALVE
34698
5120-01-604-5614INTERCHANGEABLE
JAW,MECHANICAL PULL

Frequently Asked Questions

What is NSN 5120-00-340-2010?

NSN 5120-00-340-2010 is a Jaw,mechanical Puller, manufactured by The Stanley Works Dba Stanley Proto, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-340-2010?

NSN 5120-00-340-2010 has 9 cross-referenced part numbers: 4056-4 (The Stanley Works Dba Stanley Proto), 4057J (Stanley-Proto Industrial Works Div of the Stanley Works), 960-1 (Bosch Automotive Service Solutions Inc.), 4056-4 (Armstrong-Bray and Co Sub of Armstrong Bros Tool Co), 71-614 (Apex Tool Group, Llc Dba Nicholson) and 4 more.

What NSN replaces 5120-00-340-2010?

There are 12 known substitutes for 5120-00-340-2010: 4820-00-019-2627, 6680-00-138-8943, 3455-00-243-2179 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J4056-4?

Key specifications for J4056-4: General Characteristics Item Description: SET OF 3;REVERSIBLE;STEEL;O/A LG 4.875 IN.;INSIDE RANGE 1.250 IN. MIN,2.875 IN. MAX;OUTSIDE RANGE 5.125 IN. MAX IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-340-2010 still in active supply?

NSN 5120-00-340-2010 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