The Nut,plain,cone Seat,hexagon, cataloged under National Stock Number 5310-00-921-6509, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-921-6509 |
| Item Name | Nut,plain,cone Seat,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 1.000 INCHES NOMINAL IN |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.750 INCHES IN |
| Cone Seat Angle | 30.00 DEGREES NOMINAL |
| Nut Height | 0.750 INCHES NOMINAL IN |
| Nut Style | CONE SEAT, HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 10 |
| Material | PLASTIC POLYAMIDE NYLON 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 |
|---|---|
| 216M513-1 | 5/9 Secondary reference U.S. Government activity |
| 216M513-1 | 3/9 Design control — primary reference Joint Oil Analysis Program Dba Department of Defense |
| B216M513-1 | 5/9 Secondary reference Joint Oil Analysis Program Dba Department of Defense |
| 333M109-1 | C/1 Advisory reference — outside the item-of-supply concept Dynasciences Corp |
| B216M513-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-921-6509 is a Nut,plain,cone Seat,hexagon, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-921-6509: Width Across Flats: 1.000 INCHES NOMINAL IN; Thread Series: UNIFIED NATIONAL COARSE (UNC); Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.750 INCHES IN. 10 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.