NSN 4820-00-777-6752 648XB4 1-8SS3, 648XB418SS3, 00-777-6752
Product Details | SAFETY RELIEF VALVE
4820-00-777-6752 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: 648XB4 1-8SS3, 648XB418SS3, 4820-00-777-6752, 00-777-6752, 4820007776752, 007776752
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 48 | 20 MAR 1968 | 00-777-6752 | 05488 ( VALVE, SAFETY RELIEF ) |
Drawings & Photos | NSN 4820-00-777-6752
Cross Reference | NSN 4820-00-777-6752
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 648XB4 1-8SS3 | 86768 | TELEDYNE INDUSTRIES INC TELEDYNE FLUID SYSTEMS REPUBLIC |
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Technical Data | NSN 4820-00-777-6752
| Characteristic | Specifications |
|---|---|
| MATERIAL | STEEL COMP 303 BODY STEEL CORROSION RESISTING AND PLASTIC POLYTETRAFLUOROETHYLENE FLOW CONTROL DEVICE STEEL COMP 303 SEAT |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI 303/SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE BODY AMS 3651 MIL STD 2ND MATERIAL RESPONSE FLOW CONTROL DEVICE AISI 303/SAE 30303 ASSN STD SINGLE MATERIAL RESPONSE SEAT |
| SURFACE TREATMENT | PASSIVATE |
| STYLE DESIGNATOR | C1 ANGLE |
| FLOW CONTROL DEVICE | POPPET |
| MEDIA FOR WHICH DESIGNED | OIL, HYDRAULIC SINGLE RESPONSE |
| MAXIMUM OPERATING PRESSURE | 250.0 POUNDS PER SQUARE INCH SINGLE RESPONSE |
| MAXIMUM OPERATING TEMP | 180.0 DEG FAHRENHEIT SINGLE RESPONSE |
| VALVE OPERATION METHOD | AUTOMATIC |
| CONNECTION TYPE | THREADED EXTERNAL TUBE 1ST END THREADED EXTERNAL PIPE 2ND END |
| CONNECTION STYLE | G42 FLARED 1ST END G46B PLAIN 2ND END |
| SEAT ANGLE | 37.0 DEGREES 1ST END |
| NOMINAL PIPE SIZE ACCOMMODATED | 0.125 INCHES 2ND END |
| NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED | 0.250 INCHES 1ST END |
| THREAD SERIES DESIGNATOR | UNF 1ST END NPT 2ND END |
| NOMINAL THREAD SIZE | 0.437 INCHES 1ST END 0.125 INCHES 2ND END |
| THREAD QUANTITY PER INCH | 20 1ST END 27 2ND END |
| THREAD CLASS | 3A 1ST END |
| THREAD DIRECTION | RIGHT-HAND 1ST END RIGHT-HAND 2ND END |
| BONNET TYPE | INSIDE SPRING |
| BONNET ATTACHMENT METHOD | INTEGRAL |
| DISK LOADING METHOD | SPRING |
| OPENING PRESSURE SETTING | 200.0 POUNDS PER SQUARE INCH |
| ADJUSTABLE PRESSURE RANGE | 115.0 TO 250.0 POUNDS PER SQUARE INCH |
| FEATURES PROVIDED | BONNET PACKING AND PRESSURE TIGHT OUTLET SIDE |
| MANUFACTURERS CODE | 86768 |
| DESIGN CONTROL REFERENCE | 648XB4 1-8SS3 |
Restrictions/Controls & Freight Information | NSN 4820-00-777-6752
| 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: | 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 | 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 |