PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS955Wrench,box and Open End,combinat

Society of Automotive Engineers Inc · NSN 5120-01-598-3081 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-598-3081 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-598-3081. Primary manufacturer part number: AS955.
Features
  • Wrench,box and Open End,combinat — FSC 5120
  • Wrenching Surface Shape: 12 POINT SECOND END INTERNAL
  • Wrenching Surface Shape: OVAL FIRST END INTERNAL
  • Nondefinitive Spec/std Data: 2 TYPE AND 4 CLASS AND C STYLE
  • Material: STEEL OVERALL
  • Wrenching Surface Size: 16.0 MILLIMETERS NOMINAL BOTH ENDS MM
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching End Offset Angle: 15.0 DEGREES NOMINAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Wrench,box and Open End,combinat, cataloged under National Stock Number 5120-01-598-3081, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Society of Automotive Engineers Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-598-3081
Primary Part NumberAS955
Item NameWrench,box and Open End,combinat
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSociety of Automotive Engineers Inc
StatusCANCELLED
Wrenching Surface Shape12 POINT SECOND END INTERNAL
Wrenching Surface ShapeOVAL FIRST END INTERNAL
Nondefinitive Spec/std Data2 TYPE AND 4 CLASS AND C STYLE
MaterialSTEEL OVERALL
Wrenching Surface Size16.0 MILLIMETERS NOMINAL BOTH ENDS MM
Surface TreatmentCHROMIUM OVERALL
Wrenching End Offset Angle15.0 DEGREES NOMINAL
Features ProvidedFULL POLISH
Head Angle15.0 DEGREES NOMINAL
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorOFFSET
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
3110-00-761-529452216 INTERCHANGEABLE
Bearing,ball,thrust
Schaeffler Aerospace Germany Gmbh & Co. Kg
2815-00-963-3539 INTERCHANGEABLE
Guides,valve Inlet
5210-01-008-8119445AZ-9RL INTERCHANGEABLE
Gage,depth,micrometer
L.s. Starrett Company (the) Div Tool Division
5999-01-421-0817 INTERCHANGEABLE
Mounting Pad,electrical-Electron
5120-01-430-4529 INTERCHANGEABLE
Socket Set,socket Wrench
4720-01-723-565081673 INTERCHANGEABLE
Hose,nonmetallic
Mi-Jack Products, Inc.
Cross-Reference Index
Part NumberManufacturer
AS955 Society of Automotive Engineers Inc (USA)
AS954 Sae International Dba Sae International (USA)
HCW16MM Birdon America Inc (USA)
52-216 Armstrong Bros Tool Co (USA)
AS955 Sae International Dba Sae International (USA)
52-216 Easco Hand Tools Inc Dba Danaher Tool Group Div Danaher Tool Group Easco Hand Tools Inc. (USA)
AS955 TY3CL1STC General Services Administration Federal Supply Service (USA)
52-216 Apex Tool Group, Llc Dba Nicholson (USA)
81673 Apex Tool Group, Llc Dba Nicholson (USA)
AS954 TY2CL4STC General Services Administration Federal Supply Service (USA)
HCW16MM Home Depot U.s.a., Inc. (USA)
456720010804 Ncb Hungary (honvedsegi Egyseges Termekkod) (HUN)
Related Parts
3110-00-761-5294INTERCHANGEABLE
BEARING,BALL,THRUST
52216
2815-00-963-3539INTERCHANGEABLE
GUIDES,VALVE INLET
5210-01-008-8119INTERCHANGEABLE
GAGE,DEPTH,MICROMETER
445AZ-9RL
5999-01-421-0817INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
5120-01-430-4529INTERCHANGEABLE
SOCKET SET,SOCKET WRENCH
4720-01-723-5650INTERCHANGEABLE
HOSE,NONMETALLIC
81673

Frequently Asked Questions

What is NSN 5120-01-598-3081?

NSN 5120-01-598-3081 is a Wrench,box and Open End,combinat, manufactured by Society of Automotive Engineers Inc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-598-3081?

NSN 5120-01-598-3081 has 12 cross-referenced part numbers: AS955 (Society of Automotive Engineers Inc), AS954 (Sae International Dba Sae International), HCW16MM (Birdon America Inc), 52-216 (Armstrong Bros Tool Co), AS955 (Sae International Dba Sae International) and 7 more.

What NSN replaces 5120-01-598-3081?

There are 6 known substitutes for 5120-01-598-3081: 3110-00-761-5294, 2815-00-963-3539, 5210-01-008-8119 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS955?

Key specifications for AS955: Wrenching Surface Shape: 12 POINT SECOND END INTERNAL; Overall Length: 203.0 MILLIMETERS MINIMUM AND 245.0 MILLIMETERS MAXIMUM MM; Wrenching Surface Shape: OVAL FIRST END INTERNAL; Nondefinitive Spec/std Data: 2 TYPE AND 4 CLASS AND C STYLE. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-598-3081 still in active supply?

NSN 5120-01-598-3081 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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