Product Details | SAFETY RELIEF VALVE

4820-01-622-1531 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: 81PSM684150PSIG, 4820-01-622-1531, 01-622-1531, 4820016221531, 016221531

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 2013273 01-622-1531

Cross Reference | NSN 4820-01-622-1531

Part Number Cage Code Manufacturer
81PSM68-4(150PSIG) 15187 PENTAIR VALVES & CONTROLS US LP DBA NAVY PRODUCT TEAM

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Technical Data | NSN 4820-01-622-1531

Characteristic Specifications
MATERIAL STEEL COMP 316 BODY
STYLE DESIGNATOR ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED LIQUID SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END
CONNECTION STYLE PLAIN (PIPE) 1ST END
THREAD SERIES DESIGNATOR NPT 1ST END
NOMINAL THREAD SIZE 0.75 INCHES 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
BONNET TYPE INSIDE SPRING
BONNET ATTACHMENT METHOD PRESSURE SEAL, RING TYPE
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 150.0 POUNDS PER SQUARE INCH
FURNISHED ITEMS AND QUANTITY 1 ORIFICE PLATE

Restrictions/Controls & Freight Information | NSN 4820-01-622-1531

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Electro-static Discharge Susceptible:ANo known Electrostatic Discharge (ESD) or Electromagnetic Interference (EMI) sensitivity
Precious Metals Indicator Code:AItem 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:0Represents 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
No Freight Information