PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J3752Wrench,open End Box

The Stanley Works Dba Stanley Proto · NSN 5120-00-690-7328 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-690-7328 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-690-7328. Primary manufacturer part number: J3752.
Features
  • Wrench,open End Box — FSC 5120
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Specification/standard Data: 05047-ASME B107.100 CAT 40 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Size: 0.437 INCHES NOMINAL BOTH ENDS IN
  • Style Designator: STRAIGHT JAW
  • Nondefinitive Spec/std Data: 2 TYPE
  • 11 verified cross-references
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,open End Box, cataloged under National Stock Number 5120-00-690-7328, 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 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 6 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
NSN5120-00-690-7328
Primary Part NumberJ3752
Item NameWrench,open End Box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe Stanley Works Dba Stanley Proto
StatusCANCELLED
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data05047-ASME B107.100 CAT 40 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Size0.437 INCHES NOMINAL BOTH ENDS IN
Style DesignatorSTRAIGHT JAW
Nondefinitive Spec/std Data2 TYPE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5915-00-162-426010690834 INTERCHANGEABLE
Phase Shifter,electronic
Us Army Aviation and Missile Command
5999-00-240-4304 INTERCHANGEABLE
Contact,electrical
5935-01-087-72313752 INTERCHANGEABLE
Connector Assembly,electrical
Fluke Electronics Corp
4940-01-141-03173752 INTERCHANGEABLE
Platform,work
Us Army Aviation and Missile Command
5330-01-180-27653752 INTERCHANGEABLE
Seal,plain
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
9150-01-317-38213752 INTERCHANGEABLE
Grease,ball and Roller Bearing
Lubrication Engineers, Inc.
4730-01-348-15283752-12 INTERCHANGEABLE
Coupling Half,self-Sealing
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5120-01-428-8289 INTERCHANGEABLE
Wrench,open End Box
5120-01-428-8298RXS12B INTERCHANGEABLE
Wrench,open End Box
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-428-8305RXS16B INTERCHANGEABLE
Wrench,open End Box
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
J3752 PRIMARY The Stanley Works Dba Stanley Proto (USA)
B107.40 The American Society of Mechanical Engineers (USA)
B107.100 The American Society of Mechanical Engineers (USA)
FC146 Stanley Industrial & Automotive Llc (USA)
B107.40 TY2 General Services Administration Federal Supply Service (USA)
RXS14B Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
COB14 Stanley Industrial & Automotive Llc (USA)
RXS14 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.100 CAT 40 TY2 General Services Administration Federal Supply Service (USA)
3752 The Stanley Works Dba Stanley Proto (USA)
STP 3752 Kipper Tool Company Dba Kipper Management Inc (USA)
Related Parts
5915-00-162-4260INTERCHANGEABLE
PHASE SHIFTER,ELECTRONIC
10690834
5999-00-240-4304INTERCHANGEABLE
CONTACT,ELECTRICAL
5935-01-087-7231INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
3752
4940-01-141-0317INTERCHANGEABLE
PLATFORM,WORK
3752
5330-01-180-2765INTERCHANGEABLE
SEAL,PLAIN
3752
9150-01-317-3821INTERCHANGEABLE
GREASE,BALL AND ROLLER BEARING
3752
4730-01-348-1528INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
3752-12
5120-01-428-8289INTERCHANGEABLE
WRENCH,OPEN END BOX
5120-01-428-8298INTERCHANGEABLE
WRENCH,OPEN END BOX
RXS12B
5120-01-428-8305INTERCHANGEABLE
WRENCH,OPEN END BOX
RXS16B
5120-01-428-8362INTERCHANGEABLE
WRENCH,OPEN END BOX
RXS14B
5120-01-428-8384INTERCHANGEABLE
WRENCH,OPEN END BOX
RXS18B

Frequently Asked Questions

What is NSN 5120-00-690-7328?

NSN 5120-00-690-7328 is a Wrench,open End Box, 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 5120-00-690-7328?

NSN 5120-00-690-7328 has 11 cross-referenced part numbers: J3752 (The Stanley Works Dba Stanley Proto), B107.40 (The American Society of Mechanical Engineers), B107.100 (The American Society of Mechanical Engineers), FC146 (Stanley Industrial & Automotive Llc), B107.40 TY2 (General Services Administration Federal Supply Service) and 6 more.

What NSN replaces 5120-00-690-7328?

There are 12 known substitutes for 5120-00-690-7328: 5915-00-162-4260, 5999-00-240-4304, 5935-01-087-7231 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J3752?

Key specifications for J3752: Material: STEEL OVERALL; Surface Treatment: CHROMIUM OVERALL; Specification/standard Data: 05047-ASME B107.100 CAT 40 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Wrenching Surface Size: 0.437 INCHES NOMINAL BOTH ENDS IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-690-7328 still in active supply?

NSN 5120-00-690-7328 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.
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