The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-355-6520, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Metrex Valve Corp. Dba Metrex Valve Corp. Government technical data includes 3 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 | 5310-01-355-6520 |
| Primary Part Number | 2K-22 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Metrex Valve Corp. Dba Metrex Valve Corp |
| Status | ACTIVE |
| Width Across Flats | 1.125 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Material | NICKEL ALLOY NUT |
| 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 |
|---|---|
| 2K-22 PRIMARY | Metrex Valve Corp. Dba Metrex Valve Corp (USA) |
NSN 5310-01-355-6520 is a Nut,plain,hexagon, manufactured by Metrex Valve Corp. Dba Metrex Valve Corp, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-355-6520 has 1 manufacturer part number on file: 2K-22 (Metrex Valve Corp. Dba Metrex Valve Corp).
Key specifications for 2K-22: Width Across Flats: 1.125 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND; Material: NICKEL ALLOY NUT. 3 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.