The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-00-802-8868, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Qualified Air Components Inc.. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-802-8868 |
| Primary Part Number | NAS1021A3 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Qualified Air Components Inc. |
| Status | ACTIVE |
| Width Across Flats | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Thread Series | UNF |
| Temp Rating | 550.0 FAHRENHEIT NOMINAL DEGF |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.190 INCHES IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.250 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| 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 |
|---|---|
| NAS1021A3 | Satair A/s (DNK) |
| NAS1021A3 PRIMARY | Qualified Air Components Inc. (USA) |
| NAS1021A3 PRIMARY | Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc (USA) |
| NAS1021A3 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| NAS1021A3 PRIMARY | Nor-Cal Supply Co (USA) |
| NAS1021A3 PRIMARY | Apcom Inc (USA) |
| NAS1021A3 PRIMARY | Republic Fastener Mfg. Corp. Dba Arconic Fastening Systems (USA) |
| NAS1021A3 PRIMARY | Plastic and Metal Products Corporation (USA) |
| Reference | Meaning |
|---|---|
| NAS1021A3 | 5/9 Secondary reference Harvard Industries Inc |
| NAS1021A3 | 5/9 Secondary reference Lawrence Engineering and Supply Inc |
| NAS1021A3 | 5/9 Secondary reference Klx Aerospace Solutions II SAS |
| NAS1021A3 | 5/9 Secondary reference Collins Engineering Corp |
| NAS1021A3 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| NAS1021A3 | C/1 Advisory reference — outside the item-of-supply concept Boeing Distribution Services SAS |
| NAS1021A3 | 5/9 Secondary reference U.S. Government activity |
| NAS1021A3 | 5/9 Secondary reference U.S. Government activity |
| NAS1021A3 | 5/9 Secondary reference F and C Sales Inc |
| NAS1021A3 | 5/9 Secondary reference U.S. Government activity |
NSN 5310-00-802-8868 is a Nut,self-Locking,hexagon, manufactured by Qualified Air Components Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-802-8868 has 8 manufacturer part numbers on file: NAS1021A3 (Satair A/s), NAS1021A3 (Qualified Air Components Inc.), NAS1021A3 (Hardware Specialty Co. Inc. Dba Hardware Specialty Co Inc), NAS1021A3 (Howmet Global Fastening Systems Inc), NAS1021A3 (Nor-Cal Supply Co) and 3 more.
Key specifications for NAS1021A3: Width Across Flats: 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN; Thread Series: UNF; Temp Rating: 550.0 FAHRENHEIT NOMINAL DEGF; Thread Direction: RIGHT-HAND. 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.