PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

GAN8508-31BCrowfoot Attachment,socket Wrenc

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-428-8201 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-428-8201 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-428-8201. Primary manufacturer part number: GAN8508-31B.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Wrenching Surface Shape: 6 POINT SINGLE END INTERNAL
  • Style Designator: FLARE NUT
  • Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Surface Treatment: OXIDE OVERALL
  • Material: STEEL OVERALL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-428-8201, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-428-8201
Primary Part NumberGAN8508-31B
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusACTIVE
Wrenching Surface Shape6 POINT SINGLE END INTERNAL
Style DesignatorFLARE NUT
Drive Surface Size0.500 INCHES NOMINAL SINGLE END IN
Drive End ShapeSQUARE SINGLE END INTERNAL
Surface TreatmentOXIDE OVERALL
MaterialSTEEL OVERALL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS
Specification/standard Data05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Wrenching Surface Size1.938 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5120-01-007-8286FRS AN850811B INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
5120-01-335-1133J4912HFL INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
The Stanley Works Dba Stanley Proto
5120-01-335-1157J4914HFL INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
The Stanley Works Dba Stanley Proto
5120-01-335-1158J4916HFL INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
The Stanley Works Dba Stanley Proto
5120-01-335-1159J4918HFL INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
The Stanley Works Dba Stanley Proto
5120-01-335-1161J4922HFL INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
The Stanley Works Dba Stanley Proto
5120-01-335-1164 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-355-1681J4909MHFL INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
The Stanley Works Dba Stanley Proto
5120-01-355-1690 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
5120-01-428-4966 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Cross-Reference Index
Part NumberManufacturer
B107.100 The American Society of Mechanical Engineers (USA)
GAN8508-31B PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
GAN8508-31A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.100 CAT 21 TY1CL1 General Services Administration Federal Supply Service (USA)
Related Parts
5120-01-007-8286INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
FRS AN850811B
5120-01-335-1133INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
J4912HFL
5120-01-335-1157INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
J4914HFL
5120-01-335-1158INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
J4916HFL
5120-01-335-1159INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
J4918HFL
5120-01-335-1161INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
J4922HFL
5120-01-335-1164INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-355-1681INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
J4909MHFL
5120-01-355-1690INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-428-4966INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC
5120-01-727-6152INTERCHANGEABLE
CROWFOOT ATTACHMENT SET,SOCKET W
34863

Frequently Asked Questions

What is NSN 5120-01-428-8201?

NSN 5120-01-428-8201 is a Crowfoot Attachment,socket Wrenc, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-428-8201?

NSN 5120-01-428-8201 has 4 cross-referenced part numbers: B107.100 (The American Society of Mechanical Engineers), GAN8508-31B (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), GAN8508-31A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), B107.100 CAT 21 TY1CL1 (General Services Administration Federal Supply Service).

What NSN replaces 5120-01-428-8201?

There are 11 known substitutes for 5120-01-428-8201: 5120-01-007-8286, 5120-01-335-1133, 5120-01-335-1157 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of GAN8508-31B?

Key specifications for GAN8508-31B: Wrenching Surface Shape: 6 POINT SINGLE END INTERNAL; Style Designator: FLARE NUT; Drive Surface Size: 0.500 INCHES NOMINAL SINGLE END IN; Drive End Shape: SQUARE SINGLE END INTERNAL. 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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