The Locking Plate,nut and Bolt, cataloged under National Stock Number 5340-01-420-9919, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Caterpillar Inc Div Caterpillar Defense. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Locking Plate,nut and Bolt |
| FSC / FSG | 5340 — Hardware, Commercial (FSG 53) |
| Manufacturers | Caterpillar Inc Div Caterpillar Defense (CAGE 11083); Navantia - Propulsion Y Energia Motores - Cartagena (CAGE 409BB); Navantia Sa Sme. Div Navantia Hq (CAGE 0141B) |
| Parameter | Value |
|---|---|
| NSN | 5340-01-420-9919 |
| Primary Part Number | 4W8566 |
| Item Name | Locking Plate,nut and Bolt |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Caterpillar Inc Div Caterpillar Defense |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 4W8566 | Caterpillar Inc Div Caterpillar Defense (USA) |
| 4W-8566 | Navantia - Propulsion Y Energia Motores - Cartagena (ESP) |
| 4W-8566 | Navantia Sa Sme. Div Navantia Hq (ESP) |
| Reference | Meaning |
|---|---|
| HZTL416183 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-420-9919 is a Locking Plate,nut and Bolt, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-420-9919 has 3 manufacturer part numbers on file: 4W8566 (Caterpillar Inc Div Caterpillar Defense), 4W-8566 (Navantia - Propulsion Y Energia Motores - Cartagena), 4W-8566 (Navantia Sa Sme. Div Navantia Hq).
Possible hazard — SDS may be required (DLA HMIC P). 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.