The Nut,plain,round, cataloged under National Stock Number 5310-00-809-9855, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Ozark Aeroworks Llc. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-809-9855 |
| Primary Part Number | 1-020-012-01 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Ozark Aeroworks Llc |
| Status | ACTIVE |
| Thread Series | UN |
| Drive Point Width | 0.250 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.250 INCHES IN |
| Nut Diameter | 2.620 INCHES NOMINAL IN |
| Drive Point Depth | 0.100 INCHES NOMINAL IN |
| Nut Thickness | 0.310 INCHES NOMINAL IN |
| Surface Treatment | PHOSPHATE OVERALL |
| Drive Point Quantity | 12 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL 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 |
|---|---|
| 1-020-012-01 PRIMARY | Ozark Aeroworks Llc (USA) |
| Reference | Meaning |
|---|---|
| 1-020-012-01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5310-00-809-9855 is a Nut,plain,round, manufactured by Ozark Aeroworks Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-809-9855 has 1 manufacturer part number on file: 1-020-012-01 (Ozark Aeroworks Llc).
Key specifications for 1-020-012-01: Thread Series: UN; Drive Point Width: 0.250 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 2.250 INCHES IN. 13 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.