The Cartridge,shut-Off Valve, cataloged under National Stock Number 4820-01-553-2252, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-553-2252 |
| Primary Part Number | 518-7524694 NO. 7 |
| Item Name | Cartridge,shut-Off Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Valve Size | 1.000 INCHES IN |
| 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 |
|---|---|
| 518-7524694 NO. 7 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| F479R001 PL FN 15 | 5/2 Secondary reference U.S. Government activity |
| 365-5-H PL-915 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-553-2252 is a Cartridge,shut-Off Valve, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-553-2252 has 1 manufacturer part number on file: 518-7524694 NO. 7 (Naval Sea Systems Command).
Key specifications for 518-7524694 NO. 7: Valve Size: 1.000 INCHES IN; Special Features: HANDLE NOT INCLUDED; End Item Identification: CVN77. 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.