The Nut,plain,extended Washer,hexago, cataloged under National Stock Number 5310-01-499-3438, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Haulmark Trailers (australia) Pty Ltd. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5310-01-499-3438 |
| Primary Part Number | 122239 |
| Item Name | Nut,plain,extended Washer,hexago |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Haulmark Trailers (australia) Pty Ltd |
| Status | ACTIVE |
| Nominal Thread Size | 0.4375 INCHES IN |
| Thread Quantity Per Inch | 14 |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5310-01-499-3438 is a Nut,plain,extended Washer,hexago, manufactured by Haulmark Trailers (australia) Pty Ltd, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-499-3438 has 3 manufacturer part numbers on file: 122239 (Haulmark Trailers (australia) Pty Ltd), S-24597 (Hendrickson Asia Pacific Pty Ltd), 443-10204 (Haldex Brake Products Corporation).
1 possible match (shared part number, not a government interchangeability claim): 2910-01-596-0180. Verify interchangeability with system specifications before substitution.
Key specifications for 122239: Nominal Thread Size: 0.4375 INCHES IN; End Item Identification: M871A3 SEMI-TRAILER,22.5 TON,2330-01-458-6865 END ITEM; Thread Quantity Per Inch: 14; Material: STEEL OVERALL. 3 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.