The Nut,plain,round, cataloged under National Stock Number 5310-01-037-9271, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is The Timken Corporation. 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 | 5310-01-037-9271 |
| Primary Part Number | TN13 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | The Timken Corporation |
| Status | ACTIVE |
| Thread Series | UNS |
| Thread Pitch Diameters | +2.5119 TO 2.5170 INCHES IN |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.548 INCHES IN |
| Nut Diameter | 3.375 INCHES NOMINAL IN |
| Drive Point Depth | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Nut Thickness | 0.562 INCHES NOMINAL IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Quantity Per Inch | 18 |
| 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 |
|---|---|
| TN13 PRIMARY | The Timken Corporation (USA) |
NSN 5310-01-037-9271 is a Nut,plain,round, manufactured by The Timken Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-037-9271 has 1 manufacturer part number on file: TN13 (The Timken Corporation).
Key specifications for TN13: Thread Series: UNS; Thread Pitch Diameters: +2.5119 TO 2.5170 INCHES IN; Drive Point Width: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; 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.