NSN 4820-01-355-7621 RV499, RV49-9, 01-355-7621
Product Details | SAFETY RELIEF VALVE
4820-01-355-7621 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: RV499, RV49-9, 4820-01-355-7621, 01-355-7621, 4820013557621, 013557621
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 23 MAR 1992 | 01-355-7621 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-01-355-7621
Cross Reference | NSN 4820-01-355-7621
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| RV49-9 | 91816 | CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS |
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Related Products | NSN 4820-01-355-7621
Technical Data | NSN 4820-01-355-7621
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP 303 BODY STEEL COMP 303 FLOW CONTROL DEVICE |
| SURFACE TREATMENT | PASSIVATE |
| STYLE DESIGNATOR | C4 STRAIGHT THRU |
| FLOW CONTROL DEVICE | POPPET |
| MEDIA FOR WHICH DESIGNED | AIR 1ST RESPONSE CARBON DIOXIDE 2ND RESPONSE WATER, SALT 3RD RESPONSE |
| MAXIMUM OPERATING PRESSURE | 100.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 125.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL TUBE ALL ENDS |
| CONNECTION STYLE | G46A PLAIN ALL ENDS |
| THREAD SERIES DESIGNATOR | UNF ALL ENDS |
| NOMINAL THREAD SIZE | 0.562 INCHES ALL ENDS |
| THREAD CLASS | 3A ALL ENDS |
| THREAD DIRECTION | RIGHT-HAND ALL ENDS |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 3.0 POUNDS PER SQUARE INCH |
Restrictions/Controls & Freight Information | NSN 4820-01-355-7621
| 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: | Q | Strategic List Item (SLI). Demilitarization not required. SLI are non-MLI(Munitions List Items) controlled by the U.S. Dept. of Commerce through the Export Administration Regulations (EAR) and indicated on the Commerce Control List (CCL). Each CCL entry is preceded by a four-digit Export Control Commerce Control List Item (CCLI) – MUT to the point of scrap required outside the United States. Inside the United States, MUT is required when the DEMIL integrity code (IC) is “3” and MUT is not required when the DEMIL IC is “6.” |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | A | Item does not contain precious metal |
| 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 4820-01-355-7621
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 | 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 |