PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8045Wrench,box

Armstrong Bros Tool Co · NSN 5120-00-277-3368 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-277-3368 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-277-3368. Primary manufacturer part number: 8045.
Features
  • Wrench,box — FSC 5120
  • Small End Head Thickness: 1.125 INCHES NOMINAL IN
  • Wrenching Surface Size: 1.812 INCHES NOMINAL FIRST END IN
  • Material: STEEL OVERALL
  • Wrenching End Offset Angle: 40.0 DEGREES MINIMUM AND 65.0 DEGREES MAXIMUM
  • Wrenching Surface Shape: 12 POINT BOTH ENDS INTERNAL
  • Surface Treatment: OXIDE OVERALL
  • Wrenching Surface Size: 2.000 INCHES NOMINAL SECOND END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-00-277-3368, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Armstrong Bros Tool Co. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5120-00-277-3368
Primary Part Number8045
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerArmstrong Bros Tool Co
StatusACTIVE
Small End Head Thickness1.125 INCHES NOMINAL IN
Wrenching Surface Size1.812 INCHES NOMINAL FIRST END IN
MaterialSTEEL OVERALL
Wrenching End Offset Angle40.0 DEGREES MINIMUM AND 65.0 DEGREES MAXIMUM
Wrenching Surface Shape12 POINT BOTH ENDS INTERNAL
Surface TreatmentOXIDE OVERALL
Wrenching Surface Size2.000 INCHES NOMINAL SECOND END IN
Style DesignatorDEEP ANGULAR OFFSET DOUBLE HEAD
Large End Outside Diameter3.141 INCHES NOMINAL IN
Large End Head Thickness1.250 INCHES NOMINAL IN
Small End Outside Diameter2.891 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-070-7912 INTERCHANGEABLE
Coil,radio Frequency
5120-00-277-1582 INTERCHANGEABLE
Wrench,box
5120-00-277-2293 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
3439-00-372-3480BB-4 INTERCHANGEABLE
Desoldering Wick
Eis Inc Dba Com-Kyl,div of Eis
5935-00-500-8117R883B198 INTERCHANGEABLE
Connector,receptacle,electrical
Dorer Engineering Inc Dba O J Rodgers Company
Cross-Reference Index
Part NumberManufacturer
8045 Armstrong Bros Tool Co (USA)
GGG-W-636 TY1CL2ST1 General Services Administration Federal Supply Service (USA)
8045 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
5950-00-070-7912INTERCHANGEABLE
COIL,RADIO FREQUENCY
5120-00-277-1582INTERCHANGEABLE
WRENCH,BOX
5120-00-277-2293INTERCHANGEABLE
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
3439-00-372-3480INTERCHANGEABLE
DESOLDERING WICK
BB-4
5935-00-500-8117INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
R883B198
7510-00-502-9143INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
6130-00-643-4893INTERCHANGEABLE
VIBRATOR,INTERRUPTER
SMC98007

Frequently Asked Questions

What is NSN 5120-00-277-3368?

NSN 5120-00-277-3368 is a Wrench,box, manufactured by Armstrong Bros Tool Co, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-00-277-3368?

NSN 5120-00-277-3368 has 4 cross-referenced part numbers: 8045 (Armstrong Bros Tool Co), GGG-W-636 TY1CL2ST1 (General Services Administration Federal Supply Service), 8045 (Trw Inc Hand Tools Div Trw Industrial Products Group), GGG-W-636 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5120-00-277-3368?

There are 12 known substitutes for 5120-00-277-3368: 5950-00-070-7912, 5120-00-277-1582, 5120-00-277-2293 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8045?

Key specifications for 8045: Small End Head Thickness: 1.125 INCHES NOMINAL IN; Wrenching Surface Size: 1.812 INCHES NOMINAL FIRST END IN; Material: STEEL OVERALL; Wrenching End Offset Angle: 40.0 DEGREES MINIMUM AND 65.0 DEGREES MAXIMUM. 12 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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