PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GGG-C-1507 TY1CL3Crowfoot Attachment,socket Wrenc

General Services Administration Federal Supply Service · NSN 5120-00-181-6756 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-181-6756 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-181-6756. Primary manufacturer part number: GGG-C-1507 TY1CL3.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Material: STEEL OVERALL
  • Wrenching Surface Size: 1.562 INCHES NOMINAL SINGLE END IN
  • Specification/standard Data: 0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Style Designator: FLARE NUT
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-00-181-6756, 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 8 commercial cross-references from 5 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
NSN5120-00-181-6756
Primary Part NumberGGG-C-1507 TY1CL3
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusCANCELLED
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
MaterialSTEEL OVERALL
Wrenching Surface Size1.562 INCHES NOMINAL SINGLE END IN
Specification/standard Data0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorFLARE NUT
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Head Thickness0.937 INCHES NOMINAL IN
Opening Width1.156 INCHES NOMINAL IN
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND C STYLE AND A DESIGN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-181-6750 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-181-6752 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-181-6753 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-181-6754 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-181-6755 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-181-6758 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-181-6759JHWSCF40 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Williams J H Industrial Products Inc
5120-00-184-8385 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-184-8388 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-184-8389 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Cross-Reference Index
Part NumberManufacturer
GGG-C-1507 TY1CL3 General Services Administration Federal Supply Service (USA)
AS4167 Sae International Dba Sae International (USA)
B107.21 The American Society of Mechanical Engineers (USA)
AS4167 Society of Automotive Engineers Inc (USA)
B107.21 TY1CL1 General Services Administration Federal Supply Service (USA)
GGG-C-1507 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B107.21 TY1CL3STA General Services Administration Federal Supply Service (USA)
AS4167 TY1CL1STCDEA General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-181-6750INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-181-6752INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-181-6753INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-181-6754INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-181-6755INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-181-6758INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-181-6759INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
JHWSCF40
5120-00-184-8385INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-184-8388INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-184-8389INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-184-8391INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-184-8395INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC

Frequently Asked Questions

What is NSN 5120-00-181-6756?

NSN 5120-00-181-6756 is a Crowfoot Attachment,socket Wrenc, 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 5120-00-181-6756?

NSN 5120-00-181-6756 has 8 cross-referenced part numbers: GGG-C-1507 TY1CL3 (General Services Administration Federal Supply Service), AS4167 (Sae International Dba Sae International), B107.21 (The American Society of Mechanical Engineers), AS4167 (Society of Automotive Engineers Inc), B107.21 TY1CL1 (General Services Administration Federal Supply Service) and 3 more.

What NSN replaces 5120-00-181-6756?

There are 12 known substitutes for 5120-00-181-6756: 5120-00-181-6750, 5120-00-181-6752, 5120-00-181-6753 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GGG-C-1507 TY1CL3?

Key specifications for GGG-C-1507 TY1CL3: Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL; Drive End Shape: SQUARE SINGLE END INTERNAL; Surface Treatment: CHROMIUM OVERALL; Material: STEEL OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-181-6756 still in active supply?

NSN 5120-00-181-6756 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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