The Parts Kit,ball Valve, cataloged under National Stock Number 4820-01-477-6056, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 5 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-477-6056 |
| Primary Part Number | 721-7070284 PIECE 3,7 |
| Item Name | Parts Kit,ball Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Component Quantity | 2 |
| End Item Source | 53711 |
| Supply Items and Quantities | "TITANIUM BALL, 2.625 OD X1.562 ID; DELRIN SEAT, 2.463X1.562X0.312 THK" |
| End Item Name | BALL VALVE |
| Document Source | 53711 |
| 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 |
|---|---|
| 721-7070284 PIECE 3,7 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 7070284 | D/9 Drawing number reference only Naval Sea Systems Command |
| H864-1401 PIECE 3,7 | 3/2 Design control — primary reference U.S. Government activity |
| 2640-800X1-59X2 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 4820-01-477-6056 is a Parts Kit,ball Valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-477-6056 has 1 manufacturer part number on file: 721-7070284 PIECE 3,7 (Naval Sea Systems Command).
Key specifications for 721-7070284 PIECE 3,7: Component Quantity: 2; End Item Source: 53711; Supply Items and Quantities: "TITANIUM BALL, 2.625 OD X1.562 ID; DELRIN SEAT, 2.463X1.562X0.312 THK"; End Item Name: BALL VALVE. 5 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.