The Nut,plain,round, cataloged under National Stock Number 5310-01-050-3770, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-050-3770 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-Z-325 CL3,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT |
| Thread Series | UNS |
| Drive Point Width | 0.188 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.376 INCHES IN |
| Nut Diameter | 2.062 INCHES NOMINAL IN |
| Drive Point Depth | 0.094 INCHES NOMINAL IN |
| Undercut Thickness | 0.141 INCHES NOMINAL IN |
| Nut Thickness | 0.484 INCHES NOMINAL IN |
| Small End Diameter | 1.750 INCHES NOMINAL IN |
| Surface Treatment | ZINC OVERALL EXCEPT INSERT |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 18 |
| Material | PLASTIC POLYAMIDE NYLON LOCKING INSERT |
| Material | STEEL COMP 1018 NUT |
| 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 |
|---|---|
| 803654-0-08 | 5/9 Secondary reference U.S. Government activity |
| H2650-1220PC30 | 5/9 Secondary reference U.S. Government activity |
| H2650-1220PC30 | 5/2 Secondary reference U.S. Government activity |
| 803654-0-08 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-01-050-3770 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-050-3770: Surface Treatment Document and Classification: QQ-Z-325 CL3,TY 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT; Thread Series: UNS; Drive Point Width: 0.188 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 17 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.