The Nut,self-Locking,castellated,hex, cataloged under National Stock Number 5310-01-601-7038, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Transpec Fasteners, Inc. Dba Transpec Fasteners Inc. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-601-7038 |
| Primary Part Number | TSF8C18NXLFPP |
| Item Name | Nut,self-Locking,castellated,hex |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Transpec Fasteners, Inc. Dba Transpec Fasteners Inc |
| Status | ACTIVE |
| Lubrication | WAX |
| Width Across Flats | 0.336 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN |
| Thread Series | UNJC |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Nut Height | 0.188 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Nut Style | CASTELLATED, HEXAGON |
| Thread Class | 3B |
| Hole Nominal Thread Diameter | 0.208 INCHES IN |
| Thread Quantity Per Inch | 32 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| TSF8C18NXLFPP PRIMARY | Transpec Fasteners, Inc. Dba Transpec Fasteners Inc (USA) |
NSN 5310-01-601-7038 is a Nut,self-Locking,castellated,hex, manufactured by Transpec Fasteners, Inc. Dba Transpec Fasteners Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-601-7038 has 1 manufacturer part number on file: TSF8C18NXLFPP (Transpec Fasteners, Inc. Dba Transpec Fasteners Inc).
Key specifications for TSF8C18NXLFPP: Lubrication: WAX; Width Across Flats: 0.336 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN; Thread Series: UNJC; Thread Direction: RIGHT-HAND. 12 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.