Product Details | SAFETY RELIEF VALVE

4820-00-273-6936 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: AS11S410189, AS11S41-0189, PC461S411010PCA, PC461S41-1010PCA, 3243406, 3321162, 81127S4120221ALT2PCA, 81127S41-20221ALT2PCA, 4820-00-273-6936, 00-273-6936, 4820002736936, 002736936

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1961 00-273-6936

Drawings & Photos | NSN 4820-00-273-6936


Demand History | NSN 4820-00-273-6936

Part Number Request Date QTY Origin
3243406 2019-05-133 3 DIBBS

Cross Reference | NSN 4820-00-273-6936

Part Number Cage Code Manufacturer
3243406 55380 HATCH & KIRK, INC. DIV HATCH & KIRK INC
3321162 55380 HATCH & KIRK, INC. DIV HATCH & KIRK INC
3321162 72915 GENERAL MOTORS CORP ELECTRO-MOTIVE DIV
81127S41-20221ALT2PCA 80064 NAVAL SHIP SYSTEMS COMMAND
AS11S41-0189 80064 NAVAL SHIP SYSTEMS COMMAND
PC461S41-1010PCA 80064 NAVAL SHIP SYSTEMS COMMAND

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Technical Data | NSN 4820-00-273-6936

Characteristic Specifications
MATERIAL COPPER ALLOY BODY
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE DISK
MEDIA FOR WHICH DESIGNED AIR 1ST RESPONSE GAS, NATURAL 2ND RESPONSE
MAXIMUM OPERATING PRESSURE 700.0 POUNDS PER SQUARE INCH 1ST RESPONSE 700.0 POUNDS PER SQUARE INCH 2ND RESPONSE
VALVE OPERATION METHOD MANUAL
CONNECTION TYPE THREADED INTERNAL PIPE 2ND END
CONNECTION STYLE G9 PLAIN 2ND END
NOMINAL PIPE SIZE ACCOMMODATED 0.750 INCHES 1ST END
THREAD SERIES DESIGNATOR NPT 2ND END
NOMINAL THREAD SIZE 0.750 INCHES 2ND END
THREAD DIRECTION RIGHT-HAND 2ND END
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 660.0 POUNDS PER SQUARE INCH
FURNISHED ITEMS AND QUANTITY 1 HANDLE

Restrictions/Controls & Freight Information | NSN 4820-00-273-6936

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 4820-00-273-6936

Category Code Description
Cognizance Codes3BNavy-owned stocks of field level repairable 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