PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS954Wrench,box

Society of Automotive Engineers Inc · NSN 5120-00-278-0634 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-278-0634 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-278-0634. Primary manufacturer part number: AS954.
Features
  • Wrench,box — FSC 5120
  • Wrenching Surface Size: 1.000 INCHES MAXIMUM FIRST END IN
  • Style Designator: DEEP ANGULAR OFFSET DOUBLE HEAD
  • Nondefinitive Spec/std Data: 2 TYPE AND 3 CLASS AND B STYLE
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Size: 1.125 INCHES MAXIMUM SECOND END IN
  • Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL
  • Large End Outside Diameter: 1.625 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-00-278-0634, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 8 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
NSN5120-00-278-0634
Primary Part NumberAS954
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
Wrenching Surface Size1.000 INCHES MAXIMUM FIRST END IN
Style DesignatorDEEP ANGULAR OFFSET DOUBLE HEAD
Nondefinitive Spec/std Data2 TYPE AND 3 CLASS AND B STYLE
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size1.125 INCHES MAXIMUM SECOND END IN
Wrenching Surface Shape12 POINT BOTH ENDS INTERNAL
Large End Outside Diameter1.625 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Wrenching End Offset Angle40.0 DEGREES MINIMUM AND 65.0 DEGREES MAXIMUM
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Small End Head Thickness0.688 INCHES MAXIMUM IN
Small End Outside Diameter1.438 INCHES MAXIMUM IN
Large End Head Thickness0.750 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5905-00-106-9351 INTERCHANGEABLE
Resistor,fixed,composition
5310-00-185-6338AN28 INTERCHANGEABLE
Nut,plain,round
Whittet-Higgins Company
5120-00-222-1593 INTERCHANGEABLE
Wrench,box
5120-00-222-1599 INTERCHANGEABLE
Wrench,box
6125-00-223-4796 INTERCHANGEABLE
Motor-Generator
5120-00-224-3135 INTERCHANGEABLE
Wrench,box
5120-00-224-3136 INTERCHANGEABLE
Wrench,box
5120-00-224-3137 INTERCHANGEABLE
Wrench,box
5120-00-224-3140 INTERCHANGEABLE
Wrench,box
5120-00-224-3141 INTERCHANGEABLE
Wrench,box
Cross-Reference Index
Part NumberManufacturer
AS954 Society of Automotive Engineers Inc (USA)
AS954 Sae International Dba Sae International (USA)
B107.9 TY3CL1 General Services Administration Federal Supply Service (USA)
41065 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
AS954 TY2CL3STA General Services Administration Federal Supply Service (USA)
A-A-1344 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
XO3236 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS954 TY2CL3STB General Services Administration Federal Supply Service (USA)
B107.100 The American Society of Mechanical Engineers (USA)
B107.6 The American Society of Mechanical Engineers (USA)
B107.9 The American Society of Mechanical Engineers (USA)
041065 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
8735 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5905-00-106-9351INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5310-00-185-6338INTERCHANGEABLE
NUT,PLAIN,ROUND
AN28
5120-00-222-1593INTERCHANGEABLE
WRENCH,BOX
5120-00-222-1599INTERCHANGEABLE
WRENCH,BOX
6125-00-223-4796INTERCHANGEABLE
MOTOR-GENERATOR
5120-00-224-3135INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3136INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3137INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3140INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3141INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3142INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3144INTERCHANGEABLE
WRENCH,BOX

Frequently Asked Questions

What is NSN 5120-00-278-0634?

NSN 5120-00-278-0634 is a Wrench,box, manufactured by Society of Automotive Engineers Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-278-0634?

NSN 5120-00-278-0634 has 14 cross-referenced part numbers: AS954 (Society of Automotive Engineers Inc), AS954 (Sae International Dba Sae International), B107.9 TY3CL1 (General Services Administration Federal Supply Service), 41065 (Trw Inc Hand Tools Div Trw Industrial Products Group), AS954 TY2CL3STA (General Services Administration Federal Supply Service) and 9 more.

What NSN replaces 5120-00-278-0634?

There are 12 known substitutes for 5120-00-278-0634: 5905-00-106-9351, 5310-00-185-6338, 5120-00-222-1593 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS954?

Key specifications for AS954: Wrenching Surface Size: 1.000 INCHES MAXIMUM FIRST END IN; Style Designator: DEEP ANGULAR OFFSET DOUBLE HEAD; Nondefinitive Spec/std Data: 2 TYPE AND 3 CLASS AND B STYLE; Surface Treatment: CHROMIUM OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-278-0634 still in active supply?

NSN 5120-00-278-0634 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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