The Valve,check, cataloged under National Stock Number 4820-01-554-6083, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Defense Maritime Solutions, Inc.. Government technical data includes 1 specification, 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-554-6083 |
| Primary Part Number | PAAI007333 |
| Item Name | Valve,check |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Defense Maritime Solutions, Inc. |
| Status | ACTIVE |
| Material | COPPER ALLOY BODY |
| 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 |
|---|---|
| PAAI007333 PRIMARY | Defense Maritime Solutions, Inc. (USA) |
| PAAI006886 ITEM 112 | Wartsila Netherlands (NLD) |
NSN 4820-01-554-6083 is a Valve,check, manufactured by Defense Maritime Solutions, Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-554-6083 has 2 manufacturer part numbers on file: PAAI007333 (Defense Maritime Solutions, Inc.), PAAI006886 ITEM 112 (Wartsila Netherlands).
Key specifications for PAAI007333: Special Features: 3/4 INCH - 14 NPT FEMALE IN; End Item Identification: PROPULSOR UNITS, WATERJETS FOR INLS CRAFT; Material: COPPER ALLOY BODY. 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.