The Washer,lock, cataloged under National Stock Number 5310-01-149-5401, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Kovatch Corp.. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-149-5401 |
| Primary Part Number | K-500-CH-1813 |
| Item Name | Washer,lock |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Kovatch Corp. |
| Status | ACTIVE |
| Hole Diameter | 0.750 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 |
|---|---|
| 25090074 | Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales (AUS) |
| K-500-CH-1813 PRIMARY | Kovatch Corp. (USA) |
| Reference | Meaning |
|---|---|
| 36AX 9 | 5/2 Secondary reference U.S. Government activity |
| 36AX9 | 5/9 Secondary reference Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales |
NSN 5310-01-149-5401 is a Washer,lock, manufactured by Kovatch Corp., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-149-5401 has 2 manufacturer part numbers on file: 25090074 (Volvo Group Government Sales Oceani Oceania Volvo Group Government Sales), K-500-CH-1813 (Kovatch Corp.).
Key specifications for K-500-CH-1813: Hole Diameter: 0.750 INCHES NOMINAL IN. 1 specification is 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.