Product Details | SAFETY RELIEF VALVE

4820-00-040-3134 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: 222784, 571973, 906004, 4820-00-040-3134, 00-040-3134, 4820000403134, 000403134

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1963 00-040-3134

Drawings & Photos | NSN 4820-00-040-3134


Cross Reference | NSN 4820-00-040-3134

Part Number Cage Code Manufacturer
222784 11449 TURBO POWER & MARINE SYSTEM INC SUB OF UNITED TECHNOLOGIES CORP
222784 77445 UNITED TECHNOLOGIES CORPORATION DBA PRATT WHITNEY-SPARE PARTS
571973 03113 STEWART INDUSTRIES INC BOSSERT MACHINE DIV
571973 11449 TURBO POWER & MARINE SYSTEM INC SUB OF UNITED TECHNOLOGIES CORP
571973 31322 LUTRON ELECTRONICS CO., INC.
571973 77445 UNITED TECHNOLOGIES CORPORATION DBA PRATT WHITNEY-SPARE PARTS
906004 55469 ESSEX INDUSTRIES, INC.

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Technical Data | NSN 4820-00-040-3134

Characteristic Specifications
MATERIAL ALUMINUM BODY STEEL FLOW CONTROL DEVICE STEEL SEAT
SURFACE TREATMENT ANODIZE
STYLE DESIGNATOR C1 ANGLE
FLOW CONTROL DEVICE POPPET
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED INTERNAL TUBE 1ST END THREADED INTERNAL BOSS 2ND END THREADED INTERNAL BOSS 3RD END THREADED EXTERNAL BOSS 4TH END
CONNECTION STYLE G5A FLARE 1ST END G4 GASKET SEAL 2ND END G53 DOUBLE THREADED SECTION BOSS FITTING GASKET WITH LOCKNUT SEALING 4TH END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.500 INCHES 1ST END
THREAD SERIES DESIGNATOR UNF 1ST END UNF 2ND END UNF 3RD END UNF 4TH END
NOMINAL THREAD SIZE 0.750 INCHES 1ST END 0.437 INCHES 2ND END 0.437 INCHES 3RD END 0.875 INCHES 4TH END
THREAD CLASS 2B 1ST END 2B 2ND END 2B 3RD END 2A 4TH END
THREAD DIRECTION RIGHT-HAND 1ST END RIGHT-HAND 2ND END RIGHT-HAND 3RD END RIGHT-HAND 4TH END
RENEWABLE SEAT RING TYPE BONDED
DISK LOADING METHOD SPRING
MOUNTING FACILITY BRACKET

Restrictions/Controls & Freight Information | NSN 4820-00-040-3134

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 4820-00-040-3134

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