The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-690-5629, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Heyco Inc Dba Heyco Products. Government technical data includes 10 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 | 5310-01-690-5629 |
| Primary Part Number | 2249 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Heyco Inc Dba Heyco Products |
| Status | ACTIVE |
| Width Across Flats | 30.0 MILLIMETERS NOMINAL MM |
| Thread Series | M |
| Thread Pitch in Millimeters | 1.5 |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 25.0 MILLIMETERS MM |
| Nut Height | 3.5 MILLIMETERS NOMINAL MM |
| Surface Treatment | NICKEL OVERALL |
| Nut Style | HEXAGON |
| Material | COPPER ALLOY OVERALL |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| 2249 PRIMARY | Heyco Inc Dba Heyco Products (USA) |
NSN 5310-01-690-5629 is a Nut,plain,hexagon, manufactured by Heyco Inc Dba Heyco Products, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-690-5629 has 1 manufacturer part number on file: 2249 (Heyco Inc Dba Heyco Products).
Key specifications for 2249: Width Across Flats: 30.0 MILLIMETERS NOMINAL MM; Thread Series: M; Thread Pitch in Millimeters: 1.5; Thread Direction: RIGHT-HAND. 10 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.