NSN 4820-01-450-8766 1990, 1990C-1 X .75 275PSI, 1990C1X75275PSI
Product Details | SAFETY RELIEF VALVE
4820-01-450-8766 A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes VALVE (1), RELIEF, PRESSURE AND TEMPERATURE.
Part Alternates: 1990, 1990C-1 X .75 275PSI, 1990C1X75275PSI, 4820-01-450-8766, 01-450-8766, 4820014508766, 014508766
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01-450-8766 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-01-450-8766
Demand History | NSN 4820-01-450-8766
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 4820-01-450-8766 | 2010-12-359 | 3 | DIBBS |
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Related Products | NSN 4820-01-450-8766
Technical Data | NSN 4820-01-450-8766
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP 316 BODY STEEL COMP 316 FLOW CONTROL DEVICE STEEL COMP 410 STEM |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A479, TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE BODY ASTM A479, TYPE 316 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE ASTM A276, TYPE 410, COND T ASSN STD SINGLE MATERIAL RESPONSE STEM |
| STYLE DESIGNATOR | C1 ANGLE |
| FLOW CONTROL DEVICE | DISK |
| MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE STEAM 2ND RESPONSE |
| MAXIMUM OPERATING PRESSURE | 2000.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 400.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END THREADED INTERNAL PIPE 2ND END |
| CONNECTION STYLE | G46B PLAIN 1ST END G9 PLAIN 2ND END |
| THREAD SERIES DESIGNATOR | NPT ALL ENDS |
| NOMINAL THREAD SIZE | 1.000 INCHES 1ST END 0.750 INCHES 2ND END |
| THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 275.0 POUNDS PER SQUARE INCH |
| FURNISHED ITEMS AND QUANTITY | 1 LEVER |
| MINIMUM OPERATING TEMP | -20.0 DEG FAHRENHEIT |
| SPECIAL FEATURES | CARBON STEEL(PHOSPHATED)SPRING;0.110 SQ.IN.ORIFICE AREA |
| III END ITEM IDENTIFICATION | STRATEGIC SEALIFT CONVERSION SHIPS CLASS |
Restrictions/Controls & Freight Information | NSN 4820-01-450-8766
| Category | Code | Description |
|---|---|---|
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Category | Code | Description |
|---|---|---|
| No Freight Information | ||