The Nut,plain,round, cataloged under National Stock Number 5310-01-339-6985, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-339-6985 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNEF |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.442 INCHES NOMINAL FIRST END IN |
| Drive Point Width | 0.376 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.375 INCHES IN |
| Nut Diameter | 5.000 INCHES NOMINAL IN |
| Counterbore Diameter | 2.000 INCHES MINIMUM AND 2.004 INCHES MAXIMUM FIRST END IN |
| Drive Point Depth | 0.188 INCHES NOMINAL IN |
| Undercut Thickness | 1.250 INCHES NOMINAL IN |
| Nut Thickness | 1.562 INCHES NOMINAL IN |
| Small End Diameter | 2.990 INCHES MINIMUM AND 2.995 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Drive Point Quantity | 6 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 316 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 |
|---|---|
| 4684688-1 | 3/2 Design control — primary reference U.S. Government activity |
| 4684688 PART 1 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5310-01-339-6985 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-01-339-6985: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNEF; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Nut Counterbore Depth: 0.442 INCHES NOMINAL FIRST END IN. 19 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.