PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2RB6275Wrench,box

Britool Ltd · NSN 5120-01-078-4819 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-078-4819 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-078-4819. Primary manufacturer part number: 2RB6275.
Features
  • Wrench,box — FSC 5120
  • Large End Head Thickness: 0.531 INCHES MAXIMUM IN
  • Small End Outside Diameter: 0.969 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS AND 1 STYLE
  • Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Style Designator: DEEP ANGULAR OFFSET DOUBLE HEAD
  • Large End Outside Diameter: 1.125 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-01-078-4819, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Britool Ltd. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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: Active.

Technical Specifications
ParameterValue
NSN5120-01-078-4819
Primary Part Number2RB6275
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerBritool Ltd
StatusACTIVE
Large End Head Thickness0.531 INCHES MAXIMUM IN
Small End Outside Diameter0.969 INCHES MAXIMUM IN
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS AND 1 STYLE
Wrenching Surface Shape12 POINT BOTH ENDS INTERNAL
Surface TreatmentCHROMIUM OVERALL
Style DesignatorDEEP ANGULAR OFFSET DOUBLE HEAD
Large End Outside Diameter1.125 INCHES MAXIMUM IN
Small End Head Thickness0.469 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Wrenching Surface Size0.625 INCHES MINIMUM AND 0.750 INCHES MAXIMUM SECOND END IN
Special MarkingsWRENCH SIZE
Wrenching Surface Size0.625 INCHES NOMINAL FIRST END IN
Wrenching End Offset Angle40.0 DEGREES MINIMUM AND 65.0 DEGREES MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-277-1582 INTERCHANGEABLE
Wrench,box
5120-00-277-2293 INTERCHANGEABLE
Wrench,box
5120-00-277-3368 INTERCHANGEABLE
Wrench,box
5120-00-277-5779XV1922 INTERCHANGEABLE
Wrench,box
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-277-8306XDH4046 INTERCHANGEABLE
Wrench,box
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-293-0116 INTERCHANGEABLE
Wrench,box
5120-00-293-0117 INTERCHANGEABLE
Wrench,box
5120-00-293-3453 INTERCHANGEABLE
Wrench Set,box
5120-01-076-8211 INTERCHANGEABLE
Wrench,box
5120-01-078-9015XV3842 INTERCHANGEABLE
Wrench,box
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
2RB6275 Britool Ltd (GBR)
PS5-8X3-4 Bahco Ab (SWE)
GGG-W-636 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
XV2024 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
GGG-W-636 TY1CL2ST1 General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-277-1582INTERCHANGEABLE
WRENCH,BOX
5120-00-277-2293INTERCHANGEABLE
WRENCH,BOX
5120-00-277-3368INTERCHANGEABLE
WRENCH,BOX
5120-00-277-5779INTERCHANGEABLE
WRENCH,BOX
XV1922
5120-00-277-8306INTERCHANGEABLE
WRENCH,BOX
XDH4046
5120-00-293-0116INTERCHANGEABLE
WRENCH,BOX
5120-00-293-0117INTERCHANGEABLE
WRENCH,BOX
5120-00-293-3453INTERCHANGEABLE
WRENCH SET,BOX
5120-01-076-8211INTERCHANGEABLE
WRENCH,BOX
5120-01-078-9015INTERCHANGEABLE
WRENCH,BOX
XV3842
5120-01-081-2598INTERCHANGEABLE
WRENCH,BOX
5120-01-197-0222INTERCHANGEABLE
WRENCH,BOX

Frequently Asked Questions

What is NSN 5120-01-078-4819?

NSN 5120-01-078-4819 is a Wrench,box, manufactured by Britool Ltd, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-078-4819?

NSN 5120-01-078-4819 has 5 cross-referenced part numbers: 2RB6275 (Britool Ltd), PS5-8X3-4 (Bahco Ab), GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC), XV2024 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), GGG-W-636 TY1CL2ST1 (General Services Administration Federal Supply Service).

What NSN replaces 5120-01-078-4819?

There are 12 known substitutes for 5120-01-078-4819: 5120-00-277-1582, 5120-00-277-2293, 5120-00-277-3368 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2RB6275?

Key specifications for 2RB6275: Large End Head Thickness: 0.531 INCHES MAXIMUM IN; Small End Outside Diameter: 0.969 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS AND 1 STYLE; Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL. 14 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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