NSN 4820-00-803-1222 649X64, 649X6-4, 00-803-1222
Product Details | SAFETY RELIEF VALVE
4820-00-803-1222 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: 649X64, 649X6-4, 4820-00-803-1222, 00-803-1222, 4820008031222, 008031222
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1962 | 00-803-1222 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-00-803-1222
Cross Reference | NSN 4820-00-803-1222
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 649X6-4 | 86768 | TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC |
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Related Products | NSN 4820-00-803-1222
Technical Data | NSN 4820-00-803-1222
| Characteristic | Specifications |
|---|---|
| STYLE DESIGNATOR | A7 ANGLE |
| FLOW CONTROL DEVICE | POPPET |
| MAXIMUM OPERATING PRESSURE | 3100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END |
| CONNECTION STYLE | G46A PLAIN ALL ENDS |
| SEAT ANGLE | 37.5 DEGREES 1ST END |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END |
| THREAD SERIES DESIGNATOR | UNF 1ST END |
| NOMINAL THREAD SIZE | 0.437 INCHES 1ST END |
| THREAD QUANTITY PER INCH | 20 1ST END |
| THREAD CLASS | 3A 1ST END |
| THREAD DIRECTION | RIGHT-HAND 1ST END |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 430.0 POUNDS PER SQUARE INCH |
| ADJUSTABLE PRESSURE RANGE | 430.0 TO 650.0 POUNDS PER SQUARE INCH |
Restrictions/Controls & Freight Information | NSN 4820-00-803-1222
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| 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. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| 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 | B | Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | Z | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |