PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.21 TY2CL2Crowfoot Attachment,socket Wrenc

General Services Administration Federal Supply Service · NSN 5120-01-641-5762 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-641-5762 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-641-5762. Primary manufacturer part number: B107.21 TY2CL2.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Size: 38.0 MILLIMETERS NOMINAL SINGLE END MM
  • Material: STEEL OVERALL
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Shape: OVAL SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-641-5762, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-641-5762
Primary Part NumberB107.21 TY2CL2
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface Size38.0 MILLIMETERS NOMINAL SINGLE END MM
MaterialSTEEL OVERALL
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Specification/standard Data05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Style DesignatorOPEN END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5120-00-181-6784 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-236-2261 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-535-1641 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-00-604-5021 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-302-4387 INTERCHANGEABLE
Crowfoot Attachment Set,socket W
5120-01-335-1091 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-335-1111 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-335-1124SCO44 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-335-1148FC66A INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-429-6689 INTERCHANGEABLE
Crowfoot Attachment Set,socket W
Cross-Reference Index
Part NumberManufacturer
B107.21 TY2CL2 General Services Administration Federal Supply Service (USA)
B107.100 The American Society of Mechanical Engineers (USA)
19C336 W.w. Grainger, Inc. Div Government Sales Division (USA)
J5338MCF The Stanley Works Dba Stanley Proto (USA)
B107.100 CAT 21 TY2CL2 General Services Administration Federal Supply Service (USA)
B107.21 The American Society of Mechanical Engineers (USA)
Related Parts
5120-00-181-6784INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-236-2261INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-535-1641INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-604-5021INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-302-4387INTERCHANGEABLE
CROWFOOT ATTACHMENT SET,SOCKET W
5120-01-335-1091INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-335-1111INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-335-1124INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
SCO44
5120-01-335-1148INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
FC66A
5120-01-429-6689INTERCHANGEABLE
CROWFOOT ATTACHMENT SET,SOCKET W
5120-01-586-4506INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-589-8725INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC

Frequently Asked Questions

What is NSN 5120-01-641-5762?

NSN 5120-01-641-5762 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 5120-01-641-5762?

NSN 5120-01-641-5762 has 6 cross-referenced part numbers: B107.21 TY2CL2 (General Services Administration Federal Supply Service), B107.100 (The American Society of Mechanical Engineers), 19C336 (W.w. Grainger, Inc. Div Government Sales Division), J5338MCF (The Stanley Works Dba Stanley Proto), B107.100 CAT 21 TY2CL2 (General Services Administration Federal Supply Service) and 1 more.

What NSN replaces 5120-01-641-5762?

There are 12 known substitutes for 5120-01-641-5762: 5120-00-181-6784, 5120-00-236-2261, 5120-00-535-1641 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.21 TY2CL2?

Key specifications for B107.21 TY2CL2: Overall Length: 111.1 MILLIMETERS NOMINAL MM; Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS; Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN; Surface Treatment: CHROMIUM OVERALL. 10 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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