The Nut,plain,round, cataloged under National Stock Number 5310-00-040-4922, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-040-4922 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Status | ACTIVE |
| Thread Series | UN |
| Hole Configuration Style | CONFIGURATION J |
| Material Document and Classification | MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Drive Point Width | 0.312 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 2.750 INCHES IN |
| Nut Diameter | 3.250 INCHES NOMINAL IN |
| Drive Point Depth | 0.125 INCHES NOMINAL IN |
| Undercut Thickness | 0.281 INCHES NOMINAL IN |
| Nut Thickness | 0.531 INCHES NOMINAL IN |
| Small End Diameter | 2.935 INCHES MINIMUM AND 2.936 INCHES MAXIMUM IN |
| Drilled Hole Diameter | 0.070 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM OVERALL |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 3B |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 4140 OVERALL |
| Hole Type and Quantity | 4 DRILLED |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 2087846 | 5/9 Secondary reference The Boeing Company |
| 2087846 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5310-00-040-4922 is a Nut,plain,round, classified under FSC 5310, Nuts and Washers. Status: active.
Key specifications for 5310-00-040-4922: Thread Series: UN; Hole Configuration Style: CONFIGURATION J; Material Document and Classification: MIL-S-5626 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Drive Point Width: 0.312 INCHES NOMINAL IN. 19 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.