The Nut,plain,round, cataloged under National Stock Number 5310-00-421-9990, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is A and M Aerospace, Inc.. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-00-421-9990 |
| Primary Part Number | 4T33002-101C |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | A and M Aerospace, Inc. |
| Status | ACTIVE |
| Hole Thread Quantity Per Inch | 28 |
| Thread Series | UN |
| Hole Configuration Style | CONFIGURATION F |
| Material Document and Classification | MIL-T-9047,COMP 5 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nut Counterbore Depth | 0.210 INCHES MINIMUM AND 0.250 INCHES MAXIMUM NUT IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 4.750 INCHES IN |
| Nut Diameter | 5.750 INCHES NOMINAL IN |
| Counterbore Diameter | 5.060 INCHES NOMINAL NUT IN |
| Nut Thickness | 0.875 INCHES NOMINAL IN |
| Nut Style | ROUND |
| Thread Class | 3B |
| Hole Nominal Thread Diameter | 0.250 INCHES IN |
| Thread Quantity Per Inch | 12 |
| Material | TITANIUM ALLOY OVERALL |
| Hole Type and Quantity | 6 TAPPED |
| 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 |
|---|---|
| 4T33002-101C | A and M Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 4T33002-101C | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-421-9990 is a Nut,plain,round, manufactured by A and M Aerospace, Inc., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-421-9990 has 1 manufacturer part number on file: 4T33002-101C (A and M Aerospace, Inc.).
Key specifications for 4T33002-101C: Hole Thread Quantity Per Inch: 28; Thread Series: UN; Hole Configuration Style: CONFIGURATION F; Material Document and Classification: MIL-T-9047,COMP 5 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. 16 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.