The Nut,plain,round, cataloged under National Stock Number 5310-00-034-6173, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Gyrodyne Co of America 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-00-034-6173 |
| Primary Part Number | Y61-315350-5 |
| Item Name | Nut,plain,round |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Gyrodyne Co of America Inc |
| Status | ACTIVE |
| Thread Series | UNEF |
| Nut Counterbore Depth | 0.312 INCHES NOMINAL FLANGE IN |
| Drive Point Width | 0.375 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.687 INCHES IN |
| Nut Diameter | 2.476 INCHES NOMINAL IN |
| Counterbore Diameter | 2.156 INCHES NOMINAL FLANGE IN |
| Drive Point Depth | 0.125 INCHES NOMINAL IN |
| Undercut Thickness | 0.625 INCHES NOMINAL IN |
| Nut Thickness | 0.991 INCHES NOMINAL IN |
| Small End Diameter | 2.000 INCHES NOMINAL IN |
| Drive Point Quantity | 4 |
| Nut Style | ROUND |
| Thread Class | 2B |
| Thread Quantity Per Inch | 18 |
| 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 |
|---|---|
| Y61-315350-5 PRIMARY | Gyrodyne Co of America Inc (USA) |
NSN 5310-00-034-6173 is a Nut,plain,round, manufactured by Gyrodyne Co of America Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-034-6173 has 1 manufacturer part number on file: Y61-315350-5 (Gyrodyne Co of America Inc).
Key specifications for Y61-315350-5: Thread Series: UNEF; Nut Counterbore Depth: 0.312 INCHES NOMINAL FLANGE IN; Drive Point Width: 0.375 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 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.