The Nut,plain,round, cataloged under National Stock Number 5310-00-073-0409, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 16 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 | 5310-00-073-0409 |
| Primary Part Number | 502AS2245 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Thread Series | UNS |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +2.8969 TO 2.9023 INCHES IN |
| Material Document and Classification | AMS 6381 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6382 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.953 INCHES IN |
| Nut Diameter | 3.250 INCHES NOMINAL IN |
| Drive Point Depth | 0.120 INCHES NOMINAL IN |
| Nut Thickness | 0.440 INCHES NOMINAL IN |
| Countersink Angle | 90.0 DEGREES NOMINAL NUT |
| Drive Point Quantity | 20 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| 502AS2245 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5310-00-073-0409 is a Nut,plain,round, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-073-0409 has 1 manufacturer part number on file: 502AS2245 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 502AS2245: Thread Series: UNS; Hardness Rating: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM; Thread Pitch Diameters: +2.8969 TO 2.9023 INCHES IN; Material Document and Classification: AMS 6381 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 6382 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 16 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.