PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS954Wrench,box and Open End,combinat

Sae International Dba Sae International · NSN 5120-01-399-8834 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-399-8834 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-399-8834. Primary manufacturer part number: AS954.
Features
  • Wrench,box and Open End,combinat — FSC 5120
  • Wrenching Surface Shape: 12 POINT SECOND END INTERNAL
  • Wrenching Surface Size: 41.0 MILLIMETERS NOMINAL BOTH ENDS MM
  • Nondefinitive Spec/std Data: 2 TYPE AND 4 CLASS AND C STYLE
  • Style Designator: OFFSET
  • Head Angle: 15.0 DEGREES NOMINAL
  • Wrenching Surface Shape: OVAL FIRST END INTERNAL
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-01-399-8834, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 13 commercial cross-references from 8 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
NSN5120-01-399-8834
Primary Part NumberAS954
Item NameWrench,box and Open End,combinat
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Wrenching Surface Shape12 POINT SECOND END INTERNAL
Wrenching Surface Size41.0 MILLIMETERS NOMINAL BOTH ENDS MM
Nondefinitive Spec/std Data2 TYPE AND 4 CLASS AND C STYLE
Style DesignatorOFFSET
Head Angle15.0 DEGREES NOMINAL
Wrenching Surface ShapeOVAL FIRST END INTERNAL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-050-934511541 INTERCHANGEABLE
Gasket
Grimes Aerospace Company
5133-00-233-6395 INTERCHANGEABLE
Drill,twist
5815-00-356-3357SC-D-69993 INTERCHANGEABLE
Teletypewriter Subassembly
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5365-00-551-250811541 INTERCHANGEABLE
Ring,retainer
Doall Baltimore Company
5136-00-555-0539 INTERCHANGEABLE
Tap,thread Cutting
5950-00-648-0716 INTERCHANGEABLE
Transformer,radio Frequency
4730-00-735-4388115-41 INTERCHANGEABLE
Coupling Half,quick Disconnect
Blue Jay Manufacturing Co
5950-01-019-5290948819-1 INTERCHANGEABLE
Reactor
Raytheon Company Dba Raytheon
4820-01-251-528411541 INTERCHANGEABLE
Valve,regulating,fluid Pressure
DP Mfg Inc
4820-01-366-562211541 INTERCHANGEABLE
Valve,regulating,system Pressure
DP Manufacturing Inc.
Cross-Reference Index
Part NumberManufacturer
AS954 Sae International Dba Sae International (USA)
AS954 TY2CL4STC General Services Administration Federal Supply Service (USA)
11-41MM Wright Tool Company, Llc (USA)
B107.100 The American Society of Mechanical Engineers (USA)
AS955 Sae International Dba Sae International (USA)
J1241M The Stanley Works Dba Stanley Proto (USA)
AS955 Society of Automotive Engineers Inc (USA)
1ALP7 W.w. Grainger, Inc. Div Government Sales Division (USA)
AS955 TY3CL1STC General Services Administration Federal Supply Service (USA)
B107.6 The American Society of Mechanical Engineers (USA)
11541 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.6 TY1 General Services Administration Federal Supply Service (USA)
1241M The Stanley Works Dba Stanley Proto (USA)
Related Parts
5330-00-050-9345INTERCHANGEABLE
GASKET
11541
5133-00-233-6395INTERCHANGEABLE
DRILL,TWIST
5815-00-356-3357INTERCHANGEABLE
TELETYPEWRITER SUBASSEMBLY
SC-D-69993
5365-00-551-2508INTERCHANGEABLE
RING,RETAINER
11541
5136-00-555-0539INTERCHANGEABLE
TAP,THREAD CUTTING
5950-00-648-0716INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
4730-00-735-4388INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
115-41
5950-01-019-5290INTERCHANGEABLE
REACTOR
948819-1
4820-01-251-5284INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
11541
4820-01-366-5622INTERCHANGEABLE
VALVE,REGULATING,SYSTEM PRESSURE
11541
5955-01-380-6195INTERCHANGEABLE
CRYSTAL UNIT,QUARTZ
4730-01-385-6972INTERCHANGEABLE
CLAMP,HOSE
1507A

Frequently Asked Questions

What is NSN 5120-01-399-8834?

NSN 5120-01-399-8834 is a Wrench,box and Open End,combinat, manufactured by Sae International Dba Sae International, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-399-8834?

NSN 5120-01-399-8834 has 13 cross-referenced part numbers: AS954 (Sae International Dba Sae International), AS954 TY2CL4STC (General Services Administration Federal Supply Service), 11-41MM (Wright Tool Company, Llc), B107.100 (The American Society of Mechanical Engineers), AS955 (Sae International Dba Sae International) and 8 more.

What NSN replaces 5120-01-399-8834?

There are 12 known substitutes for 5120-01-399-8834: 5330-00-050-9345, 5133-00-233-6395, 5815-00-356-3357 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS954?

Key specifications for AS954: Wrenching Surface Shape: 12 POINT SECOND END INTERNAL; Wrenching Surface Size: 41.0 MILLIMETERS NOMINAL BOTH ENDS MM; Nondefinitive Spec/std Data: 2 TYPE AND 4 CLASS AND C STYLE; Overall Length: 527.0 MILLIMETERS MINIMUM AND 603.0 MILLIMETERS MAXIMUM MM. 11 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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