PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.110 CAT 1 TY1Socket,socket Wrench

General Services Administration Federal Supply Service · NSN 5120-00-189-7918 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-189-7918 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-189-7918. Primary manufacturer part number: B107.110 CAT 1 TY1.
Features
  • Socket,socket Wrench — FSC 5120
  • Wrenching End Outside Diameter: 0.425 INCHES MAXIMUM IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Specification/standard Data: 05047-ASME B107.110 CAT 1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Surface Treatment: CHROMIUM OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-00-189-7918, 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 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-189-7918
Primary Part NumberB107.110 CAT 1 TY1
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Wrenching End Outside Diameter0.425 INCHES MAXIMUM IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
Specification/standard Data05047-ASME B107.110 CAT 1 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data1 TYPE
MaterialSTEEL OVERALL
Features ProvidedMANUAL TOOL
Wrenching Surface Size0.250 INCHES NOMINAL SINGLE END IN
Special Markings1/4 IN. IN
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Wrenching End Opening Depth0.125 INCHES MINIMUM IN
Style DesignatorINTERNAL-INTERNAL
Drive End Outside Diameter0.510 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 8
5120-00-087-0696 INTERCHANGEABLE
Socket,socket Wrench
5120-00-087-0700 INTERCHANGEABLE
Socket,socket Wrench
5120-00-189-7919 INTERCHANGEABLE
Socket,socket Wrench
5120-00-189-7920 INTERCHANGEABLE
Socket,socket Wrench
5120-00-189-7921STM11 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-189-7922STM12 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-189-7923STM14 INTERCHANGEABLE
Socket,socket Wrench
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-935-4570 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
B107.110 CAT 1 TY1 General Services Administration Federal Supply Service (USA)
A-A-1408 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
B107.110 The American Society of Mechanical Engineers (USA)
B107.1 The American Society of Mechanical Engineers (USA)
B107.1 CL1STB General Services Administration Federal Supply Service (USA)
GGG-W-641 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
2508 Wright Tool Company, Llc (USA)
B107.1 TY1CL2 General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-087-0696INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-087-0700INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-189-7919INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-189-7920INTERCHANGEABLE
SOCKET,SOCKET WRENCH
5120-00-189-7921INTERCHANGEABLE
SOCKET,SOCKET WRENCH
STM11
5120-00-189-7922INTERCHANGEABLE
SOCKET,SOCKET WRENCH
STM12
5120-00-189-7923INTERCHANGEABLE
SOCKET,SOCKET WRENCH
STM14
5120-00-935-4570INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5120-00-189-7918?

NSN 5120-00-189-7918 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 5120-00-189-7918?

NSN 5120-00-189-7918 has 8 cross-referenced part numbers: B107.110 CAT 1 TY1 (General Services Administration Federal Supply Service), A-A-1408 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), B107.110 (The American Society of Mechanical Engineers), B107.1 (The American Society of Mechanical Engineers), B107.1 CL1STB (General Services Administration Federal Supply Service) and 3 more.

What NSN replaces 5120-00-189-7918?

There are 8 known substitutes for 5120-00-189-7918: 5120-00-087-0696, 5120-00-087-0700, 5120-00-189-7919 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.110 CAT 1 TY1?

Key specifications for B107.110 CAT 1 TY1: Overall Length: 1.937 INCHES MINIMUM IN; Wrenching End Outside Diameter: 0.425 INCHES MAXIMUM IN; Drive End Shape: SQUARE SINGLE END INTERNAL; Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-189-7918 still in active supply?

NSN 5120-00-189-7918 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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