The Valve,safety Relief, cataloged under National Stock Number 4820-00-639-9106, 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 4 manufacturers, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-639-9106 |
| Primary Part Number | DD423S47-0124PC1136T01141 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Naval Ship Systems Command |
| Status | ACTIVE |
| Disk Loading Method | SPRING |
| Thread Direction | RIGHT-HAND FIRST END |
| Features Provided | PRESSURE TIGHT OUTLET SIDE |
| Bonnet Attachment Method | THREADED |
| Nominal Pipe Size Accommodated | 0.500 INCHES FIRST END IN |
| Nominal Pipe Size Accommodated | 0.500 INCHES SECOND END IN |
| Valve Operation Method | AUTOMATIC |
| Material | STEEL FLOW CONTROL DEVICE |
| Material | COPPER ALLOY BODY |
| Style Designator | ANGLE |
| Material | COPPER ALLOY SEAT |
| Material | STEEL STEM |
| Connection Style | PLAIN (PIPE) SECOND END |
| Connection Type | THREADED INTERNAL PIPE FIRST END |
| Nominal Thread Size | 0.500 INCHES FIRST END IN |
| Opening Pressure Setting | 15.0 POUNDS PER SQUARE INCH LBS |
| Connection Type | UNTHREADED EXTERNAL PIPE SECOND END |
| Flow Control Device | DISK |
| Thread Series Designator | NPT FIRST END |
| Connection Style | PLAIN,OPTIONAL END(PIPE) FIRST END |
| Bonnet Type | EXPOSED SPRING |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| DD423S47-0124PC1136T01141 PRIMARY | Naval Ship Systems Command (USA) |
| D15-414-0PC429T0434 | Westinghouse Electric Corp (USA) |
| D15-746BPC823T0829 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-509BPC1136T01141 | Westinghouse Electric Corp (USA) |
| D15-664MPC823T0829 | Westinghouse Electric Corp Sturtevant Div (USA) |
| 43B01585PC1136T01141 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-664APC823T0829 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-664LPC823T0829 | Westinghouse Electric Corp (USA) |
| D15-664KPC823T0829 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-765KPC823T0829 | Westinghouse Electric Corp (USA) |
| 43B01604PC1136T01141 PRIMARY | Naval Ship Systems Command (USA) |
| D15-783-824T0829-833 | Westinghouse Electric Corp (USA) |
| D15-332SPC245T0290 PRIMARY | Northrop Grumman Systems Corporation Div Marine Systems (USA) |
| D15-332QPC245T0250 | Westinghouse Electric Corp (USA) |
| D15-746KPC823T0829 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-783KPC824T0829-833 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-332QPC285T0290 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-664LPC823T0829 | Westinghouse Electric Corp Sturtevant Div (USA) |
| D15-665MPC823T0829 | Westinghouse Electric Corp (USA) |
| D15-543APC823T0829 | Westinghouse Electric Corp Sturtevant Div (USA) |
NSN 4820-00-639-9106 is a Valve,safety Relief, manufactured by Naval Ship Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-00-639-9106 has 50 cross-referenced part numbers: DD423S47-0124PC1136T01141 (Naval Ship Systems Command), D15-414-0PC429T0434 (Westinghouse Electric Corp), D15-746BPC823T0829 (Westinghouse Electric Corp Sturtevant Div), D15-509BPC1136T01141 (Westinghouse Electric Corp), D15-664MPC823T0829 (Westinghouse Electric Corp Sturtevant Div) and 45 more.
Key specifications for DD423S47-0124PC1136T01141: Disk Loading Method: SPRING; Thread Direction: RIGHT-HAND FIRST END; Features Provided: PRESSURE TIGHT OUTLET SIDE; Bonnet Attachment Method: THREADED. 21 total characteristics are documented in the Federal Logistics Information System.