The Parts Kit,ball Valve, cataloged under National Stock Number 4820-01-338-2270, 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 12 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 13 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-338-2270 |
| Primary Part Number | 845-5580474 ITEM 10,32L1 |
| Item Name | Parts Kit,ball Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| End Item Source | 80064 |
| Criticality Code Justification | ZZZY |
| End Item Name | BALL VALVE |
| Reference Number Differentiating Characteristics | MATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I 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 |
|---|---|
| 845-5580474 ITEM 10,32L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 255582 PC59,255584 PC19L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-5580317 ITEM 39 AND 10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-5580582 ITEM39,10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2642-820-86 ITEM39,10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 255582, PIECE 59; 25584 PIECEL1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 258759 PIECE 9,10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2642-820-85 ITEM 10,32L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-4687600 ITEM 9,10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2642-820-75 PIECE 9,10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 2640-800X1PC59,2640-801X1PC19L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| 845-5580582 ITEM 9,10L1 | Naval Inventory Control Point Mechanicsburg (USA) |
| Reference | Meaning |
|---|---|
| 845-5580582 ITEM39,10 | 5/1 Secondary reference Naval Sea Systems Command |
| 2640-800X1PC59,2640-801X1PC19 | 5/1 Secondary reference Naval Sea Systems Command |
| 845-5580317 ITEM 39 AND 10 | 5/1 Secondary reference Naval Sea Systems Command |
| 255582, PIECE 59; 25584 PIECE | 5/1 Secondary reference North American Safety Valve Industries, Inc. Dba Kunkle Valve |
| 845-4687600 ITEM 9,10 | 5/1 Secondary reference U.S. Government activity |
| 255582, PIECE 59; 25584 PIECE | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 258759 PIECE 9,10 | 5/1 Secondary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
| 2642-820-86 ITEM39,10 | 5/1 Secondary reference U.S. Government activity |
| 255582, PIECE 59; 25584 PIECE | 5/1 Secondary reference Portland Valve Llc |
| 2642-820-85 ITEM 10,32 | 5/1 Secondary reference U.S. Government activity |
| 845-5580474 ITEM 10,32 | 5/1 Secondary reference Naval Sea Systems Command |
| 845-5580582 ITEM 9,10 | 5/1 Secondary reference Naval Sea Systems Command |
| 255582 PC59,255584 PC19 | 3/1 Design control — primary reference Huntington Ingalls Inc Div Newport News Shipbuilding |
NSN 4820-01-338-2270 is a Parts Kit,ball Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-338-2270 has 12 manufacturer part numbers on file: 845-5580474 ITEM 10,32L1 (Naval Inventory Control Point Mechanicsburg), 255582 PC59,255584 PC19L1 (Naval Inventory Control Point Mechanicsburg), 845-5580317 ITEM 39 AND 10L1 (Naval Inventory Control Point Mechanicsburg), 845-5580582 ITEM39,10L1 (Naval Inventory Control Point Mechanicsburg), 2642-820-86 ITEM39,10L1 (Naval Inventory Control Point Mechanicsburg) and 7 more.
1 possible match (shared part number, not a government interchangeability claim): 4820-01-418-4258. Verify interchangeability with system specifications before substitution.
Key specifications for 845-5580474 ITEM 10,32L1: End Item Source: 80064; Criticality Code Justification: ZZZY; End Item Name: BALL VALVE; End Item Identification: 4687600. 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 4820-01-338-2270 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.