PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS954 TY1CL1STASocket,socket Wrench

General Services Administration Federal Supply Service · NSN 5120-01-278-8250 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-278-8250 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-278-8250. Primary manufacturer part number: AS954 TY1CL1STA.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching End Outside Diameter: 1.635 INCHES MAXIMUM IN
  • Material: STEEL OVERALL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Style Designator: INTERNAL-INTERNAL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Drive End Outside Diameter: 1.635 INCHES MAXIMUM IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-278-8250, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is General Services Administration Federal Supply Service. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-278-8250
Primary Part NumberAS954 TY1CL1STA
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Wrenching End Outside Diameter1.635 INCHES MAXIMUM IN
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SINGLE END INTERNAL
Style DesignatorINTERNAL-INTERNAL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Drive End Outside Diameter1.635 INCHES MAXIMUM IN
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data81343-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching End Opening Depth0.780 INCHES MINIMUM IN
Drive Surface Size0.750 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size1.125 INCHES NOMINAL SINGLE END IN
Features ProvidedMANUAL TOOL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
3455-00-007-9629 INTERCHANGEABLE
File,rotary
4720-00-253-5576100R3 3-8INID INTERCHANGEABLE
Hose,nonmetallic
Sae International Dba Sae International
4320-00-336-8919R36 INTERCHANGEABLE
Rotor,pump
Circor Naval Solutions Llc Dba Warren Pumps
4920-00-674-0083R3-6 INTERCHANGEABLE
Slip Clutch,adjusta
Roller Bearing Co of America, Inc Div Pic Design
5325-00-960-828400077 BARREL ST 1 FLANGE ST 2 INTERCHANGEABLE
Eyelet,metallic
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5360-01-025-9893 INTERCHANGEABLE
Spring,helical,compression
5355-01-466-7597 INTERCHANGEABLE
Knob
Cross-Reference Index
Part NumberManufacturer
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
36236-01 Utica Tool Co Inc (USA)
AS954 Society of Automotive Engineers Inc (USA)
R-36 Utica Tool Co Inc (USA)
AS954 Sae International Dba Sae International (USA)
Related Parts
3455-00-007-9629INTERCHANGEABLE
FILE,ROTARY
4720-00-253-5576INTERCHANGEABLE
HOSE,NONMETALLIC
100R3 3-8INID
4320-00-336-8919INTERCHANGEABLE
ROTOR,PUMP
R36
4920-00-674-0083INTERCHANGEABLE
SLIP CLUTCH,ADJUSTA
R3-6
5325-00-960-8284INTERCHANGEABLE
EYELET,METALLIC
00077 BARREL ST 1 FLANGE ST 2
5360-01-025-9893INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5355-01-466-7597INTERCHANGEABLE
KNOB

Frequently Asked Questions

What is NSN 5120-01-278-8250?

NSN 5120-01-278-8250 is a Socket,socket Wrench, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-278-8250?

NSN 5120-01-278-8250 has 5 cross-referenced part numbers: AS954 TY1CL1STA (General Services Administration Federal Supply Service), 36236-01 (Utica Tool Co Inc), AS954 (Society of Automotive Engineers Inc), R-36 (Utica Tool Co Inc), AS954 (Sae International Dba Sae International).

What NSN replaces 5120-01-278-8250?

There are 7 known substitutes for 5120-01-278-8250: 3455-00-007-9629, 4720-00-253-5576, 4320-00-336-8919 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AS954 TY1CL1STA?

Key specifications for AS954 TY1CL1STA: Wrenching End Outside Diameter: 1.635 INCHES MAXIMUM IN; Overall Length: 2.300 INCHES MAXIMUM IN; Material: STEEL OVERALL; Drive End Shape: SQUARE SINGLE END INTERNAL. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-278-8250 still in active supply?

NSN 5120-01-278-8250 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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