The Washer,lock, cataloged under National Stock Number 5310-01-240-0865, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kohler Co Engine Plant Div. Government technical data includes 8 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 | 5310-01-240-0865 |
| Primary Part Number | X-22-3 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kohler Co Engine Plant Div |
| Status | ACTIVE |
| Hardness Rating | 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM |
| Style Designator | SPLIT HELICAL-RIGHT HAND |
| Outside Diameter | 0.531 INCHES MAXIMUM IN |
| Material Thickness | 0.070 INCHES MINIMUM IN |
| Color | BLACK OVERALL |
| Surface Treatment | OXIDE OR ZINC AND CHROMATE OVERALL |
| Material | STEEL OVERALL |
| Hole Diameter | 0.380 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| 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 |
|---|---|
| X-22-3 PRIMARY | Kohler Co Engine Plant Div (USA) |
NSN 5310-01-240-0865 is a Washer,lock, manufactured by Kohler Co Engine Plant Div, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-240-0865 has 1 manufacturer part number on file: X-22-3 (Kohler Co Engine Plant Div).
Key specifications for X-22-3: Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM; Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.531 INCHES MAXIMUM IN; Material Thickness: 0.070 INCHES MINIMUM IN. 8 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.