PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-C-1507 TY1CL1Crowfoot Attachment,socket Wrenc

General Services Administration Federal Supply Service · NSN 5120-01-028-8543 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-028-8543 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-028-8543. Primary manufacturer part number: GGG-C-1507 TY1CL1.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Style Designator: FLARE NUT
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Material: STEEL OVERALL
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Size: 0.250 INCHES MAXIMUM SINGLE END IN
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-028-8543, 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 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-028-8543
Primary Part NumberGGG-C-1507 TY1CL1
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Style DesignatorFLARE NUT
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size0.250 INCHES MAXIMUM SINGLE END IN
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Opening Width0.138 INCHES MINIMUM AND 0.184 INCHES MAXIMUM IN
Head Thickness0.250 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5120-00-238-8266 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-541-4072 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-541-4073 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-541-4074TMCOS18 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-00-883-953321C2404P012 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
General Electric Company
5120-00-888-8000 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-028-8542411141-2 INTERCHANGEABLE
Key,socket Head Screw
Raytheon Company Dba Raytheon
5120-01-348-7322 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Cross-Reference Index
Part NumberManufacturer
GGG-C-1507 TY1CL1 General Services Administration Federal Supply Service (USA)
TMRX8 Snap on Uk Holdings Ltd T/a Snap on Tools (GBR)
TMRX8 Jan Hermanek (CZE)
GGG-C-1507 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5120-00-238-8266INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-541-4072INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-541-4073INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-541-4074INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
TMCOS18
5120-00-883-9533INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
21C2404P012
5120-00-888-8000INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-028-8542INTERCHANGEABLE
KEY,SOCKET HEAD SCREW
411141-2
5120-01-348-7322INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC

Frequently Asked Questions

What is NSN 5120-01-028-8543?

NSN 5120-01-028-8543 is a Crowfoot Attachment,socket Wrenc, manufactured by General Services Administration Federal Supply Service, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-028-8543?

NSN 5120-01-028-8543 has 4 cross-referenced part numbers: GGG-C-1507 TY1CL1 (General Services Administration Federal Supply Service), TMRX8 (Snap on Uk Holdings Ltd T/a Snap on Tools), TMRX8 (Jan Hermanek), GGG-C-1507 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 5120-01-028-8543?

There are 8 known substitutes for 5120-01-028-8543: 5120-00-238-8266, 5120-00-541-4072, 5120-00-541-4073 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-C-1507 TY1CL1?

Key specifications for GGG-C-1507 TY1CL1: Drive End Shape: SQUARE SINGLE END INTERNAL; Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL; Style Designator: FLARE NUT; Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN. 12 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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