PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21C2404P012Crowfoot Attachment,socket Wrenc

General Electric Company · NSN 5120-00-883-9533 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-00-883-9533 — this item is cataloged by the U.S. Government under National Stock Number 5120-00-883-9533. Primary manufacturer part number: 21C2404P012.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
  • Wrenching Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Style Designator: FLARE NUT
  • Drive Surface Size: 0.250 INCHES NOMINAL SINGLE END IN
  • Material: STEEL COMP 4340 OVERALL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
Applications
  • Applications requiring Steel Comp 4340 Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-00-883-9533, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is General Electric Company. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-00-883-9533
Primary Part Number21C2404P012
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Electric Company
StatusCANCELLED
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Wrenching Surface Size0.250 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Style DesignatorFLARE NUT
Drive Surface Size0.250 INCHES NOMINAL SINGLE END IN
MaterialSTEEL COMP 4340 OVERALL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Special Markings1/4 IN. WRENCH SIZE IN
Surface TreatmentNICKEL AND CHROMIUM OVERALL
Head Thickness0.250 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
Opening Width0.188 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
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
5120-00-888-8000 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-028-8543 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Cross-Reference Index
Part NumberManufacturer
21C2404P012 PRIMARY General Electric Company (USA)
GGG-C-1507 TY1CL1 General Services Administration Federal Supply Service (USA)
WC19605-8 Howmet Global Fastening Systems Inc. Div Microdot Products (USA)
GGG-C-1507 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
WC19605-8 PRIMARY Howmet Global Fastening Systems Inc (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
5120-00-888-8000INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-028-8543INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC

Frequently Asked Questions

What is NSN 5120-00-883-9533?

NSN 5120-00-883-9533 is a Crowfoot Attachment,socket Wrenc, manufactured by General Electric Company, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-00-883-9533?

NSN 5120-00-883-9533 has 5 cross-referenced part numbers: 21C2404P012 (General Electric Company), GGG-C-1507 TY1CL1 (General Services Administration Federal Supply Service), WC19605-8 (Howmet Global Fastening Systems Inc. Div Microdot Products), GGG-C-1507 (Federal Specifications Promulgated by General Services Administration Washington DC), WC19605-8 (Howmet Global Fastening Systems Inc).

What NSN replaces 5120-00-883-9533?

There are 6 known substitutes for 5120-00-883-9533: 5120-00-238-8266, 5120-00-541-4072, 5120-00-541-4073 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21C2404P012?

Key specifications for 21C2404P012: Overall Length: 0.968 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS; Wrenching Surface Size: 0.250 INCHES NOMINAL SINGLE END IN; Drive End Shape: SQUARE SINGLE END INTERNAL. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-00-883-9533 still in active supply?

NSN 5120-00-883-9533 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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