The Nut,plain,round, cataloged under National Stock Number 5310-00-221-3852, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-221-3852 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Series | UNS |
| Material Document and Classification | MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM NUT IN |
| Drive Point Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.360 INCHES IN |
| Nut Diameter | 3.990 INCHES MINIMUM AND 4.010 INCHES MAXIMUM IN |
| Counterbore Diameter | 2.390 INCHES MINIMUM AND 2.410 INCHES MAXIMUM NUT IN |
| Drive Point Depth | 0.250 INCHES NOMINAL IN |
| Nut Thickness | 1.090 INCHES MINIMUM AND 1.110 INCHES MAXIMUM IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| 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 |
| Reference | Meaning |
|---|---|
| 215172PC1 | 3/9 Design control — primary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
NSN 5310-00-221-3852 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-221-3852: Thread Series: UNS; Material Document and Classification: MIL-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Nut Counterbore Depth: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM NUT IN; Drive Point Width: 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN. 15 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.