PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B107.21 TY2CL1Crowfoot Attachment,socket Wrenc

General Services Administration Federal Supply Service · NSN 5120-01-335-1111 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-1111 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-1111. Primary manufacturer part number: B107.21 TY2CL1.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Surface Treatment: CHROMIUM OVERALL
  • Specification/standard Data: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Wrenching Surface Shape: OVAL SINGLE END INTERNAL
  • Style Designator: OPEN END CAMBER
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 2 TYPE AND 2 CLASS
  • Drive End Shape: SQUARE SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-335-1111, 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 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: Active.

Technical Specifications
ParameterValue
NSN5120-01-335-1111
Primary Part NumberB107.21 TY2CL1
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Surface TreatmentCHROMIUM OVERALL
Specification/standard Data05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Style DesignatorOPEN END CAMBER
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data2 TYPE AND 2 CLASS
Drive End ShapeSQUARE SINGLE END INTERNAL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size2.562 INCHES NOMINAL SINGLE END IN
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
5120-00-604-5021 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-302-4387 INTERCHANGEABLE
Crowfoot Attachment Set,socket W
5120-01-335-1091 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-335-1124SCO44 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
5120-01-586-4506 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-589-8725 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-603-5295TMCOM10 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
B107.21 TY2CL1 General Services Administration Federal Supply Service (USA)
FC82 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
5120PL0946684 Jednolity Indeks Materialowy - Uniform Material Index (POL)
B107.100 The American Society of Mechanical Engineers (USA)
FC82A Snap on Tools (AUS)
FC82A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.21 The American Society of Mechanical Engineers (USA)
B107.100 CAT 21 TY2CL2 General Services Administration Federal Supply Service (USA)
Related Parts
5120-00-181-6784INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-00-236-2261INTERCHANGEABLE
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
5120-01-335-1124INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
SCO44
5120-01-335-1148INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
FC66A
5120-01-586-4506INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-589-8725INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-603-5295INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
TMCOM10
5120-01-626-8464INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
J4928CF
5120-01-641-5762INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC

Frequently Asked Questions

What is NSN 5120-01-335-1111?

NSN 5120-01-335-1111 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 5120-01-335-1111?

NSN 5120-01-335-1111 has 8 cross-referenced part numbers: B107.21 TY2CL1 (General Services Administration Federal Supply Service), FC82 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 5120PL0946684 (Jednolity Indeks Materialowy - Uniform Material Index), B107.100 (The American Society of Mechanical Engineers), FC82A (Snap on Tools) and 3 more.

What NSN replaces 5120-01-335-1111?

There are 12 known substitutes for 5120-01-335-1111: 5120-00-181-6784, 5120-00-236-2261, 5120-00-604-5021 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B107.21 TY2CL1?

Key specifications for B107.21 TY2CL1: Surface Treatment: CHROMIUM OVERALL; Specification/standard Data: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD; Wrenching Surface Shape: OVAL SINGLE END INTERNAL; Special Features: WITH SIDE LOCK HOLE. 11 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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