The Valve,regulating,system Pressure, cataloged under National Stock Number 4820-01-368-6507, 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 11 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-368-6507 |
| Primary Part Number | 6558093-2 |
| Item Name | Valve,regulating,system Pressure |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Body Style | STRAIGHT THRU |
| Face to Face Distance | 2.630 INCHES NOMINAL IN |
| Temp Rating | -65.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF |
| Criticality Code Justification | FEAT |
| Material Document and Classification | QQ-S-763, CLASS 302, 303, 304, 305, 310, OR 316 FED SPEC SINGLE MATERIAL RESPONSE BODY |
| End Connection Quantity | 2 |
| Valve Loading Method | DOME |
| Material | STEEL CORROSION RESISTING BODY |
| Material | PLASTIC POLYCHLOROTRIFLUOROETHYLENE SEAT |
| Maximum Inlet Pressure Rating | ERR-060 |
| Outlet Pressure Setting | ERR-060 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 6558093-2 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 1386-2425 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-368-6507 is a Valve,regulating,system Pressure, manufactured by Naval Sea Systems Command, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-368-6507 has 1 manufacturer part number on file: 6558093-2 (Naval Sea Systems Command).
Key specifications for 6558093-2: Body Style: STRAIGHT THRU; Face to Face Distance: 2.630 INCHES NOMINAL IN; Temp Rating: -65.0 FAHRENHEIT MINIMUM AND 160.0 FAHRENHEIT MAXIMUM DEGF; Criticality Code Justification: FEAT. 11 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.