PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.1 TY1CL2Socket,socket Wrench

General Services Administration Federal Supply Service · NSN 5120-00-277-4252 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-277-4252 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-277-4252. Primary manufacturer part number: B107.1 TY1CL2.
Features
  • Socket,socket Wrench — FSC 5120
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Size: 0.688 INCHES NOMINAL SINGLE END IN
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-277-4252, 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 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 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: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-277-4252
Primary Part NumberB107.1 TY1CL2
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Features ProvidedMANUAL TOOL
Wrenching Surface Size0.688 INCHES NOMINAL SINGLE END IN
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Environmental Attribute CodePLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
MaterialSTEEL OVERALL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND B STYLE
Style DesignatorINTERNAL-INTERNAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
2940-00-117-0047106632 INTERCHANGEABLE
Filter Element,intake Air Cleane
Cummins Filtration Inc.
5120-00-235-5809 INTERCHANGEABLE
Socket,socket Wrench
5120-00-235-5879 INTERCHANGEABLE
Socket,socket Wrench
5120-00-239-0017 INTERCHANGEABLE
Socket,socket Wrench
5120-00-239-0018 INTERCHANGEABLE
Socket,socket Wrench
5120-00-241-3185 INTERCHANGEABLE
Socket,socket Wrench
5120-00-277-1463FDS121 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-277-1464 INTERCHANGEABLE
Socket,socket Wrench
5120-00-596-0836 INTERCHANGEABLE
Socket,socket Wrench
5905-00-774-8099 INTERCHANGEABLE
Resistor,fixed,film
Cross-Reference Index
Part NumberManufacturer
B107.1 TY1CL2 General Services Administration Federal Supply Service (USA)
B107.1 The American Society of Mechanical Engineers (USA)
B107.1 CL1STB General Services Administration Federal Supply Service (USA)
AS954 Society of Automotive Engineers Inc (USA)
A-A-1403 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
BD-1222 Trw Inc Hand Tools Div Trw Industrial Products Group (USA)
AS954 TY1CL1STB General Services Administration Federal Supply Service (USA)
AS954 Sae International Dba Sae International (USA)
42422 S K Hand Tool Corp (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
2940-00-117-0047INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
106632
5120-00-235-5809INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-235-5879INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-239-0017INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-239-0018INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-241-3185INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-277-1463INTERCHANGEABLE
SOCKET,SOCKET WRENCH
FDS121
5120-00-277-1464INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-596-0836INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5905-00-774-8099INTERCHANGEABLE
RESISTOR,FIXED,FILM
5935-01-060-9118INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
F4PNR-HC
5330-01-128-9880INTERCHANGEABLE
GASKET
42422

Frequently Asked Questions

What is NSN 5120-00-277-4252?

NSN 5120-00-277-4252 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 5120-00-277-4252?

NSN 5120-00-277-4252 has 10 cross-referenced part numbers: B107.1 TY1CL2 (General Services Administration Federal Supply Service), B107.1 (The American Society of Mechanical Engineers), B107.1 CL1STB (General Services Administration Federal Supply Service), AS954 (Society of Automotive Engineers Inc), A-A-1403 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 5 more.

What NSN replaces 5120-00-277-4252?

There are 12 known substitutes for 5120-00-277-4252: 2940-00-117-0047, 5120-00-235-5809, 5120-00-235-5879 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.1 TY1CL2?

Key specifications for B107.1 TY1CL2: Features Provided: MANUAL TOOL; Wrenching Surface Size: 0.688 INCHES NOMINAL SINGLE END IN; Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Environmental Attribute Code: PLASTICS REMOVAL IN THE MARINE ENVIRONMENT (PRIME) PRODUCT. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-277-4252 still in active supply?

NSN 5120-00-277-4252 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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