PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.100Wrench,box

The American Society of Mechanical Engineers · NSN 5120-00-277-1439 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-277-1439 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-277-1439. Primary manufacturer part number: B107.100.
Features
  • Wrench,box — FSC 5120
  • Large End Head Thickness: 0.562 INCHES MAXIMUM IN
  • Small End Outside Diameter: 1.125 INCHES MAXIMUM IN
  • Large End Outside Diameter: 1.188 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Wrenching Surface Size: 0.750 INCHES NOMINAL FIRST END IN
  • Wrenching Surface Size: 0.812 INCHES NOMINAL SECOND END IN
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-00-277-1439, 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 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-00-277-1439
Primary Part NumberB107.100
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusACTIVE
Large End Head Thickness0.562 INCHES MAXIMUM IN
Small End Outside Diameter1.125 INCHES MAXIMUM IN
Large End Outside Diameter1.188 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Wrenching Surface Size0.750 INCHES NOMINAL FIRST END IN
Wrenching Surface Size0.812 INCHES NOMINAL SECOND END IN
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Specification/standard Data05047-ASME B107.100 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Special MarkingsWRENCH SIZE
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Shape12 POINT BOTH ENDS INTERNAL
Style DesignatorSHALLOW ANGULAR OFFSET DOUBLE HEAD
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Small End Head Thickness0.531 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-224-3149XD1922 INTERCHANGEABLE
Wrench,box
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-224-3150XV2526 INTERCHANGEABLE
Wrench,box
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-277-1589 INTERCHANGEABLE
Wrench,box
5120-00-277-1590 INTERCHANGEABLE
Wrench,box
5120-00-277-1593 INTERCHANGEABLE
Wrench,box
5120-00-277-1594 INTERCHANGEABLE
Wrench,box
5120-00-277-3363 INTERCHANGEABLE
Wrench,box
5120-00-277-3366 INTERCHANGEABLE
Wrench,box
5910-00-448-2660IH121 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Standard Motor Products
5950-00-583-4741 INTERCHANGEABLE
Transformer,audio Frequency
Cross-Reference Index
Part NumberManufacturer
B107.100 The American Society of Mechanical Engineers (USA)
B107.9 The American Society of Mechanical Engineers (USA)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B107.6 The American Society of Mechanical Engineers (USA)
B107.9 TY1CL1 General Services Administration Federal Supply Service (USA)
GGG-W-636 TY1CL1ST1 General Services Administration Federal Supply Service (USA)
2893 Bonney Forge Corp (USA)
Related Parts
5120-00-224-3149INTERCHANGEABLE
WRENCH,BOX
XD1922
5120-00-224-3150INTERCHANGEABLE
WRENCH,BOX
XV2526
5120-00-277-1589INTERCHANGEABLE
WRENCH,BOX
5120-00-277-1590INTERCHANGEABLE
WRENCH,BOX
5120-00-277-1593INTERCHANGEABLE
WRENCH,BOX
5120-00-277-1594INTERCHANGEABLE
WRENCH,BOX
5120-00-277-3363INTERCHANGEABLE
WRENCH,BOX
5120-00-277-3366INTERCHANGEABLE
WRENCH,BOX
5910-00-448-2660INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
IH121
5950-00-583-4741INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
5355-00-811-8083INTERCHANGEABLE
KNOB
5120-01-024-6379INTERCHANGEABLE
WRENCH,BOX

Frequently Asked Questions

What is NSN 5120-00-277-1439?

NSN 5120-00-277-1439 is a Wrench,box, manufactured by The American Society of Mechanical Engineers, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-277-1439?

NSN 5120-00-277-1439 has 7 cross-referenced part numbers: B107.100 (The American Society of Mechanical Engineers), B107.9 (The American Society of Mechanical Engineers), GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC), B107.6 (The American Society of Mechanical Engineers), B107.9 TY1CL1 (General Services Administration Federal Supply Service) and 2 more.

What NSN replaces 5120-00-277-1439?

There are 12 known substitutes for 5120-00-277-1439: 5120-00-224-3149, 5120-00-224-3150, 5120-00-277-1589 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.100?

Key specifications for B107.100: Large End Head Thickness: 0.562 INCHES MAXIMUM IN; Small End Outside Diameter: 1.125 INCHES MAXIMUM IN; Large End Outside Diameter: 1.188 INCHES MAXIMUM IN; Material: STEEL OVERALL. 15 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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