The Parts Kit,ball Valve, cataloged under National Stock Number 4820-01-331-6847, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 4 specifications, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 4820-01-331-6847 |
| Primary Part Number | 255580 PIECE 2AND3L1 |
| Item Name | Parts Kit,ball Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| End Item Source | 43689 |
| Criticality Code Justification | ZZZY |
| End Item Name | BALL SEA VALVE |
| Reference Number Differentiating Characteristics | QUALITY CONTROL IN ACCORDANCE WITH NAVSHIPS 0948-045-7010 MATERIAL IDENTIFICATION AND CONTROL INSTRUCTION FOR LEVEL 1 ITEMS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | S |
| Part Number | Manufacturer |
|---|---|
| 255580 PIECE 2AND3L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 255583 PC 36, AND 255584 PC 17L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 255580 PIECE 2AND3 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 255583 PC 36,AND 255584 PC 17 | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4820-01-331-6847 is a Parts Kit,ball Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-331-6847 has 2 manufacturer part numbers on file: 255580 PIECE 2AND3L1 (Naval Inventory Control Point Mechanicsburg), 255583 PC 36, AND 255584 PC 17L1 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 255580 PIECE 2AND3L1: End Item Source: 43689; Criticality Code Justification: ZZZY; End Item Name: BALL SEA VALVE; End Item Identification: 255580. 4 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.
NSN 4820-01-331-6847 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.