Product Details | SAFETY RELIEF VALVE

4820-01-301-0341 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: SS4R3A5C1, SS-4R3A5-C1, 1551AS140, 1551AS1402, 1551AS140-2, 4820-01-301-0341, 01-301-0341, 4820013010341, 013010341

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 23 MAY 1989 01-301-0341

Drawings & Photos | NSN 4820-01-301-0341


Cross Reference | NSN 4820-01-301-0341

Part Number Cage Code Manufacturer
1551AS140 30003 NAVAL AIR SYSTEMS COMMAND
1551AS140-2 30003 NAVAL AIR SYSTEMS COMMAND
SS-4R3A5-C1 02570 SWAGELOK COMPANY DBA USE CAGE CODE 3T9T9 FOR
SS-4R3A5-C1 18034 NUPRO CO

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Technical Data | NSN 4820-01-301-0341

Characteristic Specifications
MATERIAL STEEL COMP 316 BODY
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE POPPET
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL PIPE 1ST END THREADED INTERNAL PIPE 2ND END
CONNECTION STYLE G46B PLAIN 1ST END G9 PLAIN 2ND END
THREAD SERIES DESIGNATOR NPT 1ST END NPT 2ND END
NOMINAL THREAD SIZE 0.250 INCHES 1ST END 0.250 INCHES 2ND END
THREAD DIRECTION RIGHT-HAND 1ST END RIGHT-HAND 2ND END
DISK LOADING METHOD SPRING
ADJUSTABLE PRESSURE RANGE 5000.0 TO 6000.0 POUNDS PER SQUARE INCH
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS CLEANING IN ACCORDANCE WITH MIL-C-52211 FOR OXYGEN SERVICE
MANUFACTURERS CODE 30003
DESIGN CONTROL REFERENCE 1551AS140-2

Restrictions/Controls & Freight Information | NSN 4820-01-301-0341

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: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 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

Management | NSN 4820-01-301-0341

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