The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-702-8945, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-702-8945 |
| Primary Part Number | 66A91B022 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| Width Across Flats | 2.877 INCHES MINIMUM AND 2.937 INCHES MAXIMUM IN |
| Thread Series | UN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.000 INCHES IN |
| Nut Height | 0.190 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OR CHROMIUM OVERALL |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OVERALL |
| Bearing Surface Type | FLAT |
| 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 |
|---|---|
| 66A91B022 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 66A91B022 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 66A91B022 | 5/9 Secondary reference Aai Corporation Div Mississippi Operations |
| 66A91B022 | C/1 Advisory reference — outside the item-of-supply concept Testek Llc Dba Testek Solutions |
NSN 5310-00-702-8945 is a Nut,plain,hexagon, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-702-8945 has 2 manufacturer part numbers on file: 66A91B022 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 66A91B022 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 66A91B022: Width Across Flats: 2.877 INCHES MINIMUM AND 2.937 INCHES MAXIMUM IN; Thread Series: UN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 2.000 INCHES IN. 11 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.