PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.9Wrench,box

The American Society of Mechanical Engineers · NSN 5120-00-184-8678 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-184-8678 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-184-8678. Primary manufacturer part number: B107.9.
Features
  • Wrench,box — FSC 5120
  • Large End Head Thickness: 1.000 INCHES MAXIMUM IN
  • Wrenching Surface Size: 1.500 INCHES NOMINAL SECOND END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Large End Outside Diameter: 2.188 INCHES MAXIMUM IN
  • Wrenching Surface Size: 1.438 INCHES NOMINAL FIRST END IN
  • Special Markings: WRENCH SIZE
  • Nondefinitive Spec/std Data: 2 TYPE AND 1 CLASS AND A STYLE
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-00-184-8678, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 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
NSN5120-00-184-8678
Primary Part NumberB107.9
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Large End Head Thickness1.000 INCHES MAXIMUM IN
Wrenching Surface Size1.500 INCHES NOMINAL SECOND END IN
Surface TreatmentCHROMIUM OVERALL
Large End Outside Diameter2.188 INCHES MAXIMUM IN
Wrenching Surface Size1.438 INCHES NOMINAL FIRST END IN
Special MarkingsWRENCH SIZE
Nondefinitive Spec/std Data2 TYPE AND 1 CLASS AND A STYLE
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorSHALLOW ANGULAR OFFSET DOUBLE HEAD
MaterialSTEEL OVERALL
Wrenching Surface Shape12 POINT BOTH ENDS INTERNAL
Small End Outside Diameter2.125 INCHES MAXIMUM IN
Small End Head Thickness0.938 INCHES MAXIMUM IN
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-184-8676 INTERCHANGEABLE
Wrench,box
5120-00-184-8677 INTERCHANGEABLE
Wrench,box
5120-00-204-2670 INTERCHANGEABLE
Wrench,box
5120-00-222-1592 INTERCHANGEABLE
Wrench,box
5120-00-222-1593 INTERCHANGEABLE
Wrench,box
5120-00-224-3144 INTERCHANGEABLE
Wrench,box
5120-00-224-3146 INTERCHANGEABLE
Wrench,box
5120-00-224-3148 INTERCHANGEABLE
Wrench,box
5120-00-224-3154 INTERCHANGEABLE
Wrench,box
5120-00-228-9521 INTERCHANGEABLE
Wrench,box
Cross-Reference Index
Part NumberManufacturer
B107.9 The American Society of Mechanical Engineers (USA)
AS954 Society of Automotive Engineers Inc (USA)
AS954 Sae International Dba Sae International (USA)
B107.9 TY1CL1 General Services Administration Federal Supply Service (USA)
AS954 TY2CL1STA General Services Administration Federal Supply Service (USA)
A-A-1342 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B107.6 The American Society of Mechanical Engineers (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B107.100 The American Society of Mechanical Engineers (USA)
Related Parts
5120-00-184-8676INTERCHANGEABLE
WRENCH,BOX
5120-00-184-8677INTERCHANGEABLE
WRENCH,BOX
5120-00-204-2670INTERCHANGEABLE
WRENCH,BOX
5120-00-222-1592INTERCHANGEABLE
WRENCH,BOX
5120-00-222-1593INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3144INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3146INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3148INTERCHANGEABLE
WRENCH,BOX
5120-00-224-3154INTERCHANGEABLE
WRENCH,BOX
5120-00-228-9521INTERCHANGEABLE
WRENCH,BOX
5120-00-228-9524INTERCHANGEABLE
WRENCH,BOX
5120-00-277-1437INTERCHANGEABLE
WRENCH,BOX

Frequently Asked Questions

What is NSN 5120-00-184-8678?

NSN 5120-00-184-8678 is a Wrench,box, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-184-8678?

NSN 5120-00-184-8678 has 9 cross-referenced part numbers: B107.9 (The American Society of Mechanical Engineers), AS954 (Society of Automotive Engineers Inc), AS954 (Sae International Dba Sae International), B107.9 TY1CL1 (General Services Administration Federal Supply Service), AS954 TY2CL1STA (General Services Administration Federal Supply Service) and 4 more.

What NSN replaces 5120-00-184-8678?

There are 12 known substitutes for 5120-00-184-8678: 5120-00-184-8676, 5120-00-184-8677, 5120-00-204-2670 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.9?

Key specifications for B107.9: Large End Head Thickness: 1.000 INCHES MAXIMUM IN; Wrenching Surface Size: 1.500 INCHES NOMINAL SECOND END IN; Surface Treatment: CHROMIUM OVERALL; Large End Outside Diameter: 2.188 INCHES MAXIMUM IN. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-184-8678 still in active supply?

NSN 5120-00-184-8678 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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