NSN 8440-01-642-4209 · NIIN 016424209 · Part number 81403-GR-XL
Cabot Hosiery Mills, Inc Dba Darn Tough Vermont · FSC 8440 — Hosiery, Handwear, and Clothing Accessories, Men's · FSG 84 — Clothing, Individual Equipment, and Insignia · CAGE 1XJX7
Government record, cited
NSN 8440-01-642-4209 — this item is cataloged by the U.S. Government under National Stock Number 8440-01-642-4209. Manufacturer of record part number: 81403-GR-XL.
Also searched as8440-01-642-4209 ·
8440016424209 ·
NIIN 016424209 ·
01-642-4209 ·
FSC 8440 Hosiery, Handwear, and Clothing Accessories, Men's · CAGE 1XJX7 · 81403-GR-XL
Manufacturer of record: Cabot Hosiery Mills, Inc Dba Darn Tough Vermont
Identification
NSN: 8440-01-642-4209
NIIN: 016424209
FSC: 8440 — Hosiery, Handwear, and Clothing Accessories, Men's
FSG: 84 — Clothing, Individual Equipment, and Insignia
Primary part number: 81403-GR-XL
Manufacturer: Cabot Hosiery Mills, Inc Dba Darn Tough Vermont
General Description
The Socks, cataloged under National Stock Number 8440-01-642-4209, is classified within Federal Supply Class 8440 (Hosiery, Handwear, and Clothing Accessories, Men's) of the Clothing, Individual Equipment, and Insignia group. The manufacturer of record is Cabot Hosiery Mills, Inc Dba Darn Tough Vermont. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Catalog Facts
Item Name
Socks
FSC / FSG
8440 — Hosiery, Handwear, and Clothing Accessories, Men's (FSG 84)
Manufacturers
Cabot Hosiery Mills, Inc Dba Darn Tough Vermont (CAGE 1XJX7)
Technical Specifications
Parameter
Value
NSN
8440-01-642-4209
Primary Part Number
81403-GR-XL
Item Name
Socks
FSC / FSG
8440 / 84 — Hosiery, Handwear, and Clothing Accessories, Men's
Cabot Hosiery Mills, Inc Dba Darn Tough Vermont (USA)
No interchangeability data on file.
Other items in FSC 8440 — Hosiery, Handwear, and Clothing Accessories, Men's
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
8440-00-004-2530
SOCKS
8440-00-004-2531
SOCKS
8440-00-004-2532
SOCKS
8440-00-004-2533
SOCKS
8440-00-004-2534
SOCKS
8440-00-004-2535
8440-00-004-2535 · Item name not on file
8440-00-004-2536
SOCKS
8440-00-032-2728
8440-00-032-2728 · Item name not on file
Frequently Asked Questions
What is NSN 8440-01-642-4209?
NSN 8440-01-642-4209 is a Socks, manufactured by Cabot Hosiery Mills, Inc Dba Darn Tough Vermont, classified under FSC 8440, Hosiery, Handwear, and Clothing Accessories, Men's. Status: active.
What part numbers are listed for NSN 8440-01-642-4209?
NSN 8440-01-642-4209 has 1 manufacturer part number on file: 81403-GR-XL (Cabot Hosiery Mills, Inc Dba Darn Tough Vermont).
Is NSN 8440-01-642-4209 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.