Product Details | SAFETY RELIEF VALVE

4820-00-781-7154 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: D559TP4D40, D559TP-4D40, 2312687PC1, 4820-00-781-7154, 00-781-7154, 4820007817154, 007817154

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1960 00-781-7154

Drawings & Photos | NSN 4820-00-781-7154


Cross Reference | NSN 4820-00-781-7154

Part Number Cage Code Manufacturer
2312687PC1 10001 NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT
D559TP-4D40 91816 CIRCOR AEROSPACE, INC. DBA CIRCLE SEAL CONTROLS

Request a Quote

What Our Customers Say

Compare

NSNs for Compare ( up to 4 ): Add 4820-00-781-7154

Technical Data | NSN 4820-00-781-7154

Characteristic Specifications
MATERIAL STEEL COMP 303 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
STYLE DESIGNATOR C5 STRAIGHT THRU W/BAFFLE
FLOW CONTROL DEVICE POPPET
MEDIA FOR WHICH DESIGNED WATER, FRESH SINGLE RESPONSE
MAXIMUM OPERATING PRESSURE 200.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 212.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD AUTOMATIC
CONNECTION TYPE THREADED EXTERNAL TUBE 1ST END
CONNECTION STYLE G42 FLARED 1ST END
SEAT ANGLE 37.0 DEGREES 1ST END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED 0.250 INCHES 1ST END
THREAD SERIES DESIGNATOR UNF 1ST END
NOMINAL THREAD SIZE 0.437 INCHES 1ST END
THREAD CLASS 3A 1ST END
THREAD DIRECTION RIGHT-HAND 1ST END
DISK LOADING METHOD SPRING
OPENING PRESSURE SETTING 37.0 POUNDS PER SQUARE INCH
ADJUSTABLE PRESSURE RANGE 38.0 TO 42.0 POUNDS PER SQUARE INCH
FEATURES PROVIDED PRESSURE TIGHT OUTLET SIDE
MANUFACTURERS CODE 10001
DESIGN CONTROL REFERENCE 2312687PC1

Restrictions/Controls & Freight Information | NSN 4820-00-781-7154

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 4820-00-781-7154

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