NSN 4820-00-683-8570 33801003, 3380100-3, 00-683-8570
Product Details | SAFETY RELIEF VALVE
4820-00-683-8570 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: 33801003, 3380100-3, 4820-00-683-8570, 00-683-8570, 4820006838570, 006838570
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-683-8570 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-00-683-8570
Cross Reference | NSN 4820-00-683-8570
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 3380100-3 | 78385 | MEGGITT (TROY), INC. DIV MEGGITT PLC |
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Technical Data | NSN 4820-00-683-8570
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY OVERALL |
| STYLE DESIGNATOR | C4 STRAIGHT THRU |
| FLOW CONTROL DEVICE | POPPET |
| MAXIMUM OPERATING PRESSURE | 30.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL BOSS ALL ENDS |
| CONNECTION STYLE | G43 EXTERNAL SEAT FOR GASKET SEAL ALL ENDS |
| SEAT ANGLE | 37.0 DEGREES ALL ENDS |
| THREAD SERIES DESIGNATOR | UNJ ALL ENDS |
| NOMINAL THREAD SIZE | 0.437 INCHES ALL ENDS |
| THREAD QUANTITY PER INCH | 20 ALL ENDS |
| THREAD CLASS | 3A ALL ENDS |
| THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 25.9 POUNDS PER SQUARE INCH |
Restrictions/Controls & Freight Information | NSN 4820-00-683-8570
| 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 | ||
| 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 |