Product Details | SAFETY RELIEF VALVE

4820-00-870-1274 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: FIG.230, FIG230, VAL1362, 230-1/4IN. 450PSI, 23014IN450PSI, 4820-00-870-1274, 00-870-1274, 4820008701274, 008701274

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1962 00-870-1274

Drawings & Photos | NSN 4820-00-870-1274


Cross Reference | NSN 4820-00-870-1274

Part Number Cage Code Manufacturer
230-1/4IN. 450PSI 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
FIG.230 01343 ANDERSON GREENWOOD LP DBA ANDERSON GREENWOOD CROSBY
VAL1362 93232 CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION
VAL1362 93234 WORTHINGTON COMPRESSORS INC AIR POWER AND CONSTRUCTION EQUIP DIV
VAL1362 93236 DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN

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Technical Data | NSN 4820-00-870-1274

Characteristic Specifications
MATERIAL STEEL COMP 303 BODY ALUMINUM ALLOY BODY LINING STEEL COMP 303 FLOW CONTROL DEVICE STEEL COMP 303 SEAT
MATERIAL DOCUMENT AND CLASSIFICATION AISI 303 ASSN STD SINGLE MATERIAL RESPONSE BODY AISI 303 ASSN STD SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE AISI 303 ASSN STD SINGLE MATERIAL RESPONSE SEAT
SURFACE TREATMENT ANODIZE
STYLE DESIGNATOR C3 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE GAS, INERT 2ND RESPONSE
MAXIMUM OPERATING PRESSURE 1500.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 185.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE DISCHARGE FLOW RATE 27.0 CUBIC FEET PER MINUTE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE ALL ENDS
CONNECTION STYLE G46B PLAIN ALL ENDS
THREAD SERIES DESIGNATOR NPT ALL ENDS
NOMINAL THREAD SIZE 0.250 INCHES ALL ENDS
THREAD DIRECTION RIGHT-HAND ALL ENDS
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 450.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 300.0 TO 1500.0 POUNDS PER SQUARE INCH
III END ITEM IDENTIFICATION AIR COMPESSORS, HIGH PRESSURE

Restrictions/Controls & Freight Information | NSN 4820-00-870-1274

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:UPrecious 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 XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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 4820-00-870-1274

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesJNOT 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each