PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

26-739Wrench,box

Armstrong Bros Tool Co · NSN 5120-01-196-8792 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-196-8792 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-196-8792. Primary manufacturer part number: 26-739.
Features
  • Wrench,box — FSC 5120
  • Large End Head Thickness: 0.615 INCHES MAXIMUM IN
  • Surface Treatment: CHROMIUM OVERALL
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS AND A STYLE
  • Small End Outside Diameter: 1.270 INCHES MAXIMUM IN
  • Wrenching Surface Size: 0.875 INCHES NOMINAL FIRST END IN
  • Small End Head Thickness: 0.594 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box, cataloged under National Stock Number 5120-01-196-8792, 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 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-196-8792
Primary Part Number26-739
Item NameWrench,box
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerArmstrong Bros Tool Co
StatusACTIVE
Large End Head Thickness0.615 INCHES MAXIMUM IN
Surface TreatmentCHROMIUM OVERALL
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS AND A STYLE
Small End Outside Diameter1.270 INCHES MAXIMUM IN
Wrenching Surface Size0.875 INCHES NOMINAL FIRST END IN
Small End Head Thickness0.594 INCHES MAXIMUM IN
Style DesignatorSHALLOW ANGULAR OFFSET DOUBLE HEAD
Large End Outside Diameter1.360 INCHES MAXIMUM IN
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Specification/standard Data81343-AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Size0.938 INCHES NOMINAL SECOND END IN
Wrenching Surface Shape12 POINT BOTH ENDS INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1620-00-821-446826739 INTERCHANGEABLE
Slug,valve
Parker-Hannifin Corporation Dba Control Systems Division
6730-00-897-1872 INTERCHANGEABLE
Hand Trip Knob
6680-00-988-6999 INTERCHANGEABLE
Indicator,sight,liquid
3040-01-311-755526739 INTERCHANGEABLE
Cylinder,hydraulic Accumulator
Doall Baltimore Company
Cross-Reference Index
Part NumberManufacturer
26-739 Armstrong Bros Tool Co (USA)
AS954 Sae International Dba Sae International (USA)
XV2830 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
26-739 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
26-739 Apex Tool Group, Llc Dba Nicholson (USA)
AS954 Society of Automotive Engineers Inc (USA)
AS954 TY2CL2STA General Services Administration Federal Supply Service (USA)
Related Parts
1620-00-821-4468INTERCHANGEABLE
SLUG,VALVE
26739
6730-00-897-1872INTERCHANGEABLE
HAND TRIP KNOB
6680-00-988-6999INTERCHANGEABLE
INDICATOR,SIGHT,LIQUID
3040-01-311-7555INTERCHANGEABLE
CYLINDER,HYDRAULIC ACCUMULATOR
26739

Frequently Asked Questions

What is NSN 5120-01-196-8792?

NSN 5120-01-196-8792 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 5120-01-196-8792?

NSN 5120-01-196-8792 has 7 cross-referenced part numbers: 26-739 (Armstrong Bros Tool Co), AS954 (Sae International Dba Sae International), XV2830 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 26-739 (Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc.), 26-739 (Apex Tool Group, Llc Dba Nicholson) and 2 more.

What NSN replaces 5120-01-196-8792?

There are 4 known substitutes for 5120-01-196-8792: 1620-00-821-4468, 6730-00-897-1872, 6680-00-988-6999 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 26-739?

Key specifications for 26-739: Large End Head Thickness: 0.615 INCHES MAXIMUM IN; Surface Treatment: CHROMIUM OVERALL; Material: STEEL OVERALL; Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS AND A STYLE. 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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