The Nut,plain,round, cataloged under National Stock Number 5310-01-421-9826, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-421-9826 |
| Primary Part Number | 3353AS216-1 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Thread Series | UN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.437 INCHES IN |
| Nut Diameter | 0.725 INCHES MINIMUM AND 0.735 INCHES MAXIMUM IN |
| Nut Thickness | 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| Thread Class | 2B |
| Thread Quantity Per Inch | 32 |
| Material | COPPER ALLOY 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 |
|---|---|
| 3353AS216-1 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 3353AS216-1 | Lenox Instrument Co., Inc. (USA) |
NSN 5310-01-421-9826 is a Nut,plain,round, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-421-9826 has 2 manufacturer part numbers on file: 3353AS216-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 3353AS216-1 (Lenox Instrument Co., Inc.).
Key specifications for 3353AS216-1: Thread Series: UN; Thread Direction: RIGHT-HAND; Nominal Thread Size: 0.437 INCHES IN; Nut Diameter: 0.725 INCHES MINIMUM AND 0.735 INCHES MAXIMUM IN. 8 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.