The Washer,lock, cataloged under National Stock Number 5310-01-620-8616, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Yanmar America Corporation. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-620-8616 |
| Primary Part Number | X-22-20 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Yanmar America Corporation |
| Status | ACTIVE |
| Outside Diameter | 0.373 INCHES NOMINAL IN |
| Hole Diameter | 0.172 INCHES NOMINAL 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-22-20 PRIMARY | Yanmar America Corporation (USA) |
| Reference | Meaning |
|---|---|
| X-22-20 | 5/9 Secondary reference Kevin Michael Kohler Inc. Dba It's Electric |
| X-22-20 | 3/9 Design control — primary reference Yanmar Diesel America Corp |
NSN 5310-01-620-8616 is a Washer,lock, manufactured by Yanmar America Corporation, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-620-8616 has 1 manufacturer part number on file: X-22-20 (Yanmar America Corporation).
Key specifications for X-22-20: Outside Diameter: 0.373 INCHES NOMINAL IN; End Item Identification: 6115016132486; Hole Diameter: 0.172 INCHES NOMINAL IN. 2 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.