The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-329-9101, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Oshkosh Defense Llc. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-329-9101 |
| Primary Part Number | 2DY408 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Oshkosh Defense Llc |
| Status | ACTIVE |
| Nominal Thread Size | 0.375 INCHES IN |
| Thread Quantity Per Inch | 16 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 2DY408 | Oshkosh Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 9904.6200 | 3/2 Design control — primary reference U.S. Government activity |
| 2DY408 | 5/9 Secondary reference Oshkosh Corp |
| 9904.6200 | C/1 Advisory reference — outside the item-of-supply concept Supreme Integrated Technology, Inc. Dba C.s. Controls |
NSN 5310-01-329-9101 is a Nut,plain,extended Washer,hexago, manufactured by Oshkosh Defense Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-329-9101 has 1 manufacturer part number on file: 2DY408 (Oshkosh Defense Llc).
1 possible match (shared part number, not a government interchangeability claim): 5310-01-474-7686. Verify interchangeability with system specifications before substitution.
Key specifications for 2DY408: Nominal Thread Size: 0.375 INCHES IN; Special Features: 3/8" - 16 SPINLOCK NUT; End Item Identification: 4210-01-486-1035 TFFT (TACTICAL FIRE FIGHTING TRUCK); 2420-66-148-7692, HMEE (HIGH MOBILITY ENGINEER EXCAVATOR); Thread Quantity Per Inch: 16. 2 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.