Product Details | SAFETY RELIEF VALVE

4820-00-287-4629 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: 4900984114ASSY7, 4900-984114ASSY7, 4900984114ATL3PC1T057T01216, 4900-984114ATL3PC1T05-7T012-16, 4900984114PC1T057T01216, 4900-984114PC1T05-7T012-16, 56948051189763ALT2PCV7, 569-4805-1189763ALT2PCV7, 56949001191405ALT3PCV11, 569-4900-1191405ALT3PCV11, 56949001191408ALT2PCV7, 569-4900-1191408ALT2PCV7, 56949001191412ALT1PCV15, 569-4900-1191412ALT1PCV15, 4820-00-287-4629, 00-287-4629, 4820002874629, 002874629

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-287-4629

Drawings & Photos | NSN 4820-00-287-4629


Cross Reference | NSN 4820-00-287-4629

Part Number Cage Code Manufacturer
4900-984114ASSY7 80064 NAVAL SHIP SYSTEMS COMMAND
4900-984114ATL3PC1T05-7T012-16 80064 NAVAL SHIP SYSTEMS COMMAND
4900-984114PC1T05-7T012-16 80064 NAVAL SHIP SYSTEMS COMMAND
569-4805-1189763ALT2PCV7 80064 NAVAL SHIP SYSTEMS COMMAND
569-4900-1191405ALT3PCV11 80064 NAVAL SHIP SYSTEMS COMMAND
569-4900-1191408ALT2PCV7 80064 NAVAL SHIP SYSTEMS COMMAND
569-4900-1191412ALT1PCV15 80064 NAVAL SHIP SYSTEMS COMMAND

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Technical Data | NSN 4820-00-287-4629

Characteristic Specifications
MATERIAL COPPER ALLOY BODY NICKEL ALLOY SEAT
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL PIPE 1ST END THREADED EXTERNAL PIPE 2ND END
CONNECTION STYLE G9 PLAIN 1ST END G46B PLAIN 2ND END
NOMINAL PIPE SIZE ACCOMMODATED 0.500 INCHES 1ST END 0.750 INCHES 2ND END
THREAD SERIES DESIGNATOR NPT 1ST END NPT 2ND END
NOMINAL THREAD SIZE 0.500 INCHES 1ST END 0.750 INCHES 2ND END
THREAD QUANTITY PER INCH 14 1ST END 14 2ND END
THREAD DIRECTION RIGHT-HAND 1ST END RIGHT-HAND 2ND END
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 120.0 POUNDS PER SQUARE INCH
FEATURES PROVIDED PRESSURE TIGHT OUTLET SIDE
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS REQUIRES SPECIAL CLEANING AND PACKAGING FOR OXYGEN AND NITROGEN SERVICE
CRITICALITY CODE JUSTIFICATION ZZZY
MANUFACTURERS CODE 80064
DESIGN CONTROL REFERENCE 4900-984114PC1T05-7T012-16

Restrictions/Controls & Freight Information | NSN 4820-00-287-4629

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:AItem does not contain precious metal
Criticality Code:SThe item is a non-aviation Critical Safety Item (CSI) whose failure will result in serious damage to equipment or serious injury or death to personnel.
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
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 4820-00-287-4629

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable DLA material
Naval Inventory Control Point, Mechanicsburg
Special Material IDCPAn item that requires special cleaning and packaging for oxygen/nitrogen service (e.g, valves, piping systems, generators).
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