The Parts Kit,ball Valve, cataloged under National Stock Number 4820-01-534-0873, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Derbyshire Machine & Tool Co. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-534-0873 |
| Primary Part Number | 845-4558738 PC 142, 147 |
| Item Name | Parts Kit,ball Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Derbyshire Machine & Tool Co |
| Status | ACTIVE |
| Furnished Items | BALL AND SEATS |
| 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 |
|---|---|
| 845-4558738 PC 142, 147 | Derbyshire Machine & Tool Co (USA) |
| Reference | Meaning |
|---|---|
| 845-4558738 ITEM 142,147 | 3/2 Design control — primary reference U.S. Government activity |
| 4558738-142-147 | 5/2 Secondary reference U.S. Government activity |
| 4558738 | D/9 Drawing number reference only U.S. Government activity |
| 2642-785-01 ITEM 142,147 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-534-0873 is a Parts Kit,ball Valve, manufactured by Derbyshire Machine & Tool Co, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-534-0873 has 1 manufacturer part number on file: 845-4558738 PC 142, 147 (Derbyshire Machine & Tool Co).
Key specifications for 845-4558738 PC 142, 147: Furnished Items: BALL AND SEATS; End Item Identification: VIRGINIA CLASS SSN. 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.