The Valve,safety Relief, cataloged under National Stock Number 4820-00-202-8221, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Ship Systems Command. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 50 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-202-8221 |
| Primary Part Number | CV22S47-88ALT6PC501T0506 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) ALL ENDS |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Disk Loading Method | SPRING |
| Material | COPPER ALLOY BODY |
| Valve Operation Method | AUTOMATIC |
| Opening Pressure Setting | 20.0 POUNDS PER SQUARE INCH LBS |
| Thread Series Designator | NPT ALL ENDS |
| Connection Type | THREADED EXTERNAL PIPE ALL ENDS |
| Nominal Pipe Size Accommodated | 0.375 INCHES ALL ENDS IN |
| Style Designator | ANGLE |
| Nominal Thread Size | 0.375 INCHES ALL ENDS IN |
| Material | STEEL STEM |
| Thread Direction | RIGHT-HAND ALL ENDS |
| Thread Quantity Per Inch | 18 FIRST END |
| Style Designator | ANGLE |
| Flow Control Device | POPPET |
| Material | COPPER ALLOY SEAT |
| Opening Pressure Setting | 20.0 POUNDS PER SQUARE INCH LBS |
| Thread Quantity Per Inch | 18 FIRST END |
| Material | STEEL STEM |
| Thread Series Designator | NPT ALL ENDS |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| CV22S47-88ALT6PC501T0506 PRIMARY | Naval Ship Systems Command (USA) |
| CL55S47-89ALT6PC501T0506 PRIMARY | Naval Ship Systems Command (USA) |
| D15-649-501T506 | Westinghouse Electric Corp Sturtevant Div (USA) |
| CVL48S5501-478939PC173 PRIMARY | Naval Ship Systems Command (USA) |
| D15-675APC501T0506 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-675BPC501T0506 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| CVL48S5501-478982ALT3PC162 PRIMARY | Naval Ship Systems Command (USA) |
| D15-675MPC501T0506-508 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-675BPC501T0506 | Westinghouse Electric Corp (USA) |
| D15-675MPC501T0506-508 | Westinghouse Electric Corp Sturtevant Div (USA) |
| DD445S4601-250PC501T0506 PRIMARY | Naval Ship Systems Command (USA) |
| CA122S5505-179253PC501T0506 PRIMARY | Naval Ship Systems Command (USA) |
| CL55S47-81ALT6PC501T0506 PRIMARY | Naval Ship Systems Command (USA) |
| D15-649BPC501T0506 | Westinghouse Electric Corp (USA) |
| D15-649-501T0506-512 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| C2555-1DPC373 | Ex-Cell-O Corp Machine Tool Products Div (USA) |
| D15-653BPC501T0506 | Westinghouse Electric Corp (USA) |
| D15-683APC501T0506-508 | Westinghouse Electric Corp (USA) |
| D15-649-501-506 | Westinghouse Electric Corp (USA) |
| D15-649BPC50T05 06 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
NSN 4820-00-202-8221 is a Valve,safety Relief, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-202-8221 has 50 cross-referenced part numbers: CV22S47-88ALT6PC501T0506 (Naval Ship Systems Command), CL55S47-89ALT6PC501T0506 (Naval Ship Systems Command), D15-649-501T506 (Westinghouse Electric Corp Sturtevant Div), CVL48S5501-478939PC173 (Naval Ship Systems Command), D15-675APC501T0506 (Westinghouse Electric Corp Sturtevant Div) and 45 more.
Key specifications for CV22S47-88ALT6PC501T0506: Connection Style: PLAIN (PIPE) ALL ENDS; Nominal Thread Size: 0.375 INCHES ALL ENDS IN; Disk Loading Method: SPRING; Material: COPPER ALLOY BODY. 21 total characteristics are documented in the Federal Logistics Information System.