The Nut,self-Locking,single Ball Sea, cataloged under National Stock Number 5310-00-845-1105, 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15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-845-1105 |
| Item Name | Nut,self-Locking,single Ball Sea |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Width Across Flats | 0.304 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Material Document and Classification | AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Features Provided | REMOVABLE COLLAR |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Specification/standard Data | 80205-NAS 1288 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.280 INCHES MAXIMUM IN |
| Ball Seat Radius | 0.285 INCHES MINIMUM AND 0.315 INCHES MAXIMUM IN |
| Surface Treatment | ZINC OR NICKEL OVERALL |
| Nut Style | SINGLE BALL SEAT, HEXAGON |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 601 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 |
|---|---|
| LH4084-048 | C/1 Advisory reference — outside the item-of-supply concept Esna, Llc |
| 10121764 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| NAS1288-4 | 3/2 Design control — primary reference U.S. Government activity |
| LH4084-048 | 5/9 Secondary reference Harvard Industries Inc |
NSN 5310-00-845-1105 is a Nut,self-Locking,single Ball Sea, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-845-1105: Width Across Flats: 0.304 INCHES MINIMUM AND 0.316 INCHES MAXIMUM IN; Thread Series: UNF; Material Document and Classification: AMS 6304 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Features Provided: REMOVABLE COLLAR. 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.