The Nut,plain,round, cataloged under National Stock Number 5310-01-180-6620, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-180-6620 |
| Primary Part Number | 803-529014 PC37 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Thread Series | UNS |
| Material Document and Classification | ASTM B584 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nut Counterbore Depth | 0.375 INCHES NOMINAL BOSS IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.625 INCHES IN |
| Nut Diameter | 2.750 INCHES NOMINAL IN |
| Counterbore Diameter | 1.640 INCHES NOMINAL BOSS IN |
| Drive Point Depth | 0.137 INCHES NOMINAL IN |
| Undercut Thickness | 0.786 INCHES NOMINAL IN |
| Nut Thickness | 1.380 INCHES NOMINAL IN |
| Drive Point Diameter | 0.248 INCHES MINIMUM AND 0.252 INCHES MAXIMUM IN |
| Small End Diameter | 2.123 INCHES MINIMUM AND 2.127 INCHES MAXIMUM IN |
| Drive Point Quantity | 4 |
| Thread Class | 2B |
| Thread Quantity Per Inch | 12 |
| Material | COPPER ALLOY 903 OR COPPER ALLOY 905 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 |
|---|---|
| 803-529014 PC37 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-5293014 PIECE 37 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-01-180-6620 is a Nut,plain,round, manufactured by Naval Sea Systems Command, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-180-6620 has 1 manufacturer part number on file: 803-529014 PC37 (Naval Sea Systems Command).
Key specifications for 803-529014 PC37: Thread Series: UNS; Material Document and Classification: ASTM B584 ASSN STD ALL MATERIAL RESPONSES OVERALL; Nut Counterbore Depth: 0.375 INCHES NOMINAL BOSS IN; Thread Direction: RIGHT-HAND. 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.