NSN 4820-00-342-4799 14023, 16649, 1664918
Product Details | SAFETY RELIEF VALVE
4820-00-342-4799 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: 14023, 16649, 1664918, 16649-18, 7620119, 4820-00-342-4799, 00-342-4799, 4820003424799, 003424799
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-342-4799 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-00-342-4799
Cross Reference | NSN 4820-00-342-4799
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 14023 | 33654 | HOWDEN FLUID SYSTEMS |
| 14023 | 58163 | MEGGITT (NORTH HOLLYWOOD), INC. DBA MEGGITT CONTROL SYSTEMS |
| 16649 | 33654 | HOWDEN FLUID SYSTEMS |
| 16649 | 58163 | MEGGITT (NORTH HOLLYWOOD), INC. DBA MEGGITT CONTROL SYSTEMS |
| 16649-18 | 33654 | HOWDEN FLUID SYSTEMS |
| 16649-18 | 58163 | MEGGITT (NORTH HOLLYWOOD), INC. DBA MEGGITT CONTROL SYSTEMS |
| 7620119 | 18876 | U S ARMY AVIATION AND MISSILE COMMAND |
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Related Products | NSN 4820-00-342-4799
Technical Data | NSN 4820-00-342-4799
| Characteristic | Specifications |
|---|---|
| MATERIAL | ALUMINUM ALLOY 2024 BODY STEEL CORROSION RESISTING AND SILICON FLOW CONTROL DEVICE ALUMINUM ALLOY 2024 SEAT ALUMINUM ALLOY 2024 STEM |
| SURFACE TREATMENT | ANODIZE |
| STYLE DESIGNATOR | C4 STRAIGHT THRU |
| FLOW CONTROL DEVICE | DISK |
| MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE OXYGEN, GASEOUS 2ND RESPONSE OIL, CHLORINATED TRANSFORMER 3RD RESPONSE |
| MAXIMUM OPERATING PRESSURE | 30.0 POUNDS PER SQUARE INCH 1ST RESPONSE |
| MAXIMUM OPERATING TEMP | -70.0 DEG FAHRENHEIT 1ST RESPONSE 450.0 DEG FAHRENHEIT 2ND RESPONSE |
| VALVE DISCHARGE FLOW RATE | 0.9 CUBIC FEET PER MINUTE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL PIPE 1ST END |
| CONNECTION STYLE | G46B PLAIN 1ST END |
| THREAD SERIES DESIGNATOR | NPT 1ST END |
| NOMINAL THREAD SIZE | 0.125 INCHES 1ST END |
| THREAD DIRECTION | RIGHT-HAND 1ST END |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 26.0 POUNDS PER SQUARE INCH |
Restrictions/Controls & Freight Information | NSN 4820-00-342-4799
| 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: | B | Munitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.) |
| 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 | ||
| Less than truck load rating | P | 77.5 |
| Water commodity Code | 576 | 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 | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | Z | No special type of cargo code applicable |
Management | NSN 4820-00-342-4799
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | V | TERMINAL ITEM # Identifies items in stock, but future procurement is not authorized. Requisitions may continue to be submitted until stocks are exhausted. Preferred item National Stock Number is normally provided by application of the phrase: When Exhausted Use (NSN). Requisitions will be submitted in accordance with IMM/Service requisitioning procedures as applicable. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |