NSN 4820-00-608-0971 53A38, 53-A-38, 55A17
Product Details | SAFETY RELIEF VALVE
4820-00-608-0971 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: 53A38, 53-A-38, 55A17, 55-A-17, 4820-00-608-0971, 00-608-0971, 4820006080971, 006080971
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 01 JAN 1963 | 00-608-0971 | 05488 ( VALVE, SAFETY RELIEF ) |
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Related Products | NSN 4820-00-608-0971
Technical Data | NSN 4820-00-608-0971
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL CORROSION RESISTING BODY STEEL FLOW CONTROL DEVICE ASBESTOS PACKING STEEL UNS J03008 SEAT STEEL CORROSION RESISTING STEM |
| STYLE DESIGNATOR | C1A ANGLE FLANGED ENDS |
| FIRST CONNECTION FACE TO CENTERLINE DISTANCE | 5.000 INCHES |
| SECOND CONNECTION FACE TO CENTERLINE DISTANCE | 5.000 INCHES |
| VALVE SIZE | 3.000 INCHES |
| FLOW CONTROL DEVICE | DISK OR STEM |
| MAXIMUM OPERATING PRESSURE | 400.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 650.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | MANUAL |
| CONNECTION TYPE | FLANGE 1ST END |
| FLANGE SHAPE | ROUND WITH HOLES 1ST END |
| NOMINAL OUTSIDE DIAMETER | 6.625 INCHES 1ST END |
| NOMINAL THICKNESS | 0.562 INCHES 1ST END |
| BOLT HOLE QUANTITY | 8 1ST END |
| BOLT HOLE NOMINAL DIAMETER | 0.625 INCHES 1ST END |
| BOLT CIRCLE NOMINAL DIAMETER | 5.500 INCHES 1ST END |
| FLANGE FACE DESIGN | RAISED STRAIGHT 1ST END |
| RAISED FACE NOMINAL HEIGHT | 0.062 INCHES 1ST END |
| RAISED FACE NOMINAL DIAMETER | 4.750 INCHES 1ST END |
| BONNET TYPE | OUTSIDE SCREW-YOKE |
| BONNET ATTACHMENT METHOD | BOLTED |
| DISK LOADING METHOD | SPRING |
| MOUNTING FACILITY | BRACKET |
| MANUFACTURERS CODE | 53553 |
| DESIGN CONTROL REFERENCE | 55-A-17 |
Restrictions/Controls & Freight Information | NSN 4820-00-608-0971
| 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: | 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. |
| Automatic Data Processing Equipment: | 0 | Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9) |
| 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 | 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 4820-00-608-0971
| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 7H | Depot level reparable shipboard and base equipment, assemblies, components and repair parts related to Naval Sea Systems Command equipment Naval Inventory Control Point, Mechanicsburg |
| Special Material Content | 9 | Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions |
| Source of Supply | N35 | Naval Inventory Control Point Mechanicsburg, PA 17055-0788 |
| Agency | DN | Department of the Navy |
| Service Organization | L | Lead Service - 22 (Repairable) |
| Reparability | H | Depot Level Reparable |
| 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 |



