NSN 4820-01-052-2449 20274, 20274F51M, 01-052-2449
Product Details | SAFETY RELIEF VALVE
4820-01-052-2449 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: 20274, 20274F51M, 4820-01-052-2449, 01-052-2449, 4820010522449, 010522449
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 12 DEC 1977 | 01-052-2449 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-01-052-2449
Demand History | NSN 4820-01-052-2449
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| 20274F51M | 2021-03-73 | 1 | DIBBS |
| 20274F51M | 2019-02-37 | 1 | DIBBS |
| 4820-01-052-2449 | 2018-12-336 | 1 | DIBBS |
| 4820-01-052-2449 | 2016-06-153 | 1 | DIBBS |
| 4820-01-052-2449 | 2011-05-147 | 1 | DIBBS |
| 4820-01-052-2449 | 2008-12-353 | 1 | DIBBS |
| 4820-01-052-2449 | 2008-12-349 | 1 | DIBBS |
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Technical Data | NSN 4820-01-052-2449
| Characteristic | Specifications |
|---|---|
| MATERIAL | COPPER ALLOY BODY NICKEL ALLOY FLOW CONTROL DEVICE NICKEL ALLOY SEAT NICKEL ALLOY STEM |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-C-390,ALLOY D4/D/ FED SPEC SINGLE MATERIAL RESPONSE BODY QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE SEAT QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE STEM |
| STYLE DESIGNATOR | C1 ANGLE |
| FLOW CONTROL DEVICE | DISK |
| MAXIMUM OPERATING PRESSURE | 34.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | UNTHREADED INTERNAL TUBE ALL ENDS |
| CONNECTION STYLE | G30A SOCKET WITH BRAZING RING ALL ENDS |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.313 INCHES ALL ENDS |
| DISK LOADING METHOD | SPRING |
| ADJUSTABLE PRESSURE RANGE | 30.0 TO 34.0 POUNDS PER SQUARE INCH |
| FURNISHED ITEMS AND QUANTITY | 1 PLUGGED DRAIN |
| III END ITEM IDENTIFICATION | SHIP,OHIO CLASS SSN(TRIDENT) |
Restrictions/Controls & Freight Information | NSN 4820-01-052-2449
| 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 | 594 | unknown |
| Originating Activity Code | AX | Defense Supply Center Columbus Columbus, OH 43216-5000 |
| 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 |
Management | NSN 4820-01-052-2449
Navy| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 3B | Navy-owned stocks of field level repairable 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 |
| Reparability | D | Field Level Reparables |
| Acquisition Advice Codes | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |