NSN 4820-00-878-6171 MILV8813, 10892810, 00-878-6171
Product Details | SAFETY RELIEF VALVE
4820-00-878-6171 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: MILV8813, 10892810, 4820-00-878-6171, 00-878-6171, 4820008786171, 008786171
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1962 | 00-878-6171 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-00-878-6171
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Technical Data | NSN 4820-00-878-6171
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | B3 STRAIGHT THRU |
| FLOW CONTROL DEVICE | POPPET |
| VALVE DISCHARGE FLOW RATE | 5.0 GALLONS PER MINUTE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED INTERNAL BOSS 1ST END |
| CONNECTION STYLE | G4 GASKET SEAL 1ST END |
| THREAD SERIES DESIGNATOR | UNF 1ST END |
| NOMINAL THREAD SIZE | 0.562 INCHES 1ST END |
| THREAD QUANTITY PER INCH | 18 1ST END |
| THREAD CLASS | 3B 1ST END |
| THREAD DIRECTION | RIGHT-HAND 1ST END |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 550.0 POUNDS PER SQUARE INCH |
| ADJUSTABLE PRESSURE RANGE | 500.0 TO 825.0 POUNDS PER SQUARE INCH |
| FEATURES PROVIDED | PRESSURE TIGHT OUTLET SIDE |
| NONDEFINITIVE SPEC/STD DATA | A CLASS |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY PRESET RELIEF PRESSURE SETTINGAND DISCHARGE CAPACITY |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MILV8813 |
Restrictions/Controls & Freight Information | NSN 4820-00-878-6171
| 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 |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| NMF Description | 127220 | PRESSURE REG/RED/RELIEF VALVES NOI |
| Less than car load rating | P | 77.5 |
| Less than truck load rating | P | 77.5 |
| Water commodity Code | 594 | unknown |
| Originating Activity Code | XX | |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | V | Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |