Product Details | STOP-LIFT-CHECK VALVE

4820-00-781-7820 A valve with a stem that may be mechanically actuated to three different positions by rotary or linear motion. In the first position, the valve disk is located and locked against the seat permitting no fluid flow through the valve. In the second position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. In the third position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also VALVE, LIFT-CHECK and VALVE, STOP-CHECK.20248100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: MILV22094, 29973, 3657U, 4820-00-781-7820, 00-781-7820, 4820007817820, 007817820

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 01 JAN 1960 00-781-7820

Drawings & Photos | NSN 4820-00-781-7820


Cross Reference | NSN 4820-00-781-7820

Part Number Cage Code Manufacturer
29973 14959 CRANE CO DIV VALVE DIV
3657U 14959 CRANE CO DIV VALVE DIV
MILV22094 81349 MILITARY SPECIFICATIONS PROMULGATED BY MILITARY

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Technical Data | NSN 4820-00-781-7820

Characteristic Specifications
MATERIAL COBALT ALLOY FLOW CONTROL DEVICE STEEL COMP 410 STEM
STYLE DESIGNATOR E7A ANGLE FLANGED ENDS
VALVE SIZE 1.000 INCHES
FIRST CONNECTION FACE TO CENTERLINE DISTANCE 4.250 INCHES
SECOND CONNECTION FACE TO CENTERLINE DISTANCE 4.250 INCHES
FLOW CONTROL DEVICE DISK
VALVE OPERATION METHOD MANUAL
CONNECTION TYPE FLANGE 1ST END
FLANGE SHAPE ROUND WITH HOLES 1ST END
NOMINAL OUTSIDE DIAMETER 4.875 INCHES 1ST END
NOMINAL THICKNESS 0.688 INCHES 1ST END
BOLT HOLE QUANTITY 4 1ST END
BOLT HOLE NOMINAL DIAMETER 0.750 INCHES 1ST END
BOLT CIRCLE NOMINAL DIAMETER 3.500 INCHES 1ST END
FLANGE FACE DESIGN RAISED STRAIGHT 1ST END
RAISED FACE NOMINAL HEIGHT 0.250 INCHES 1ST END
RAISED FACE NOMINAL DIAMETER 2.000 INCHES 1ST END
MOUNTING POSITION VERTICAL
RENEWABLE SEAT RING TYPE THREADED
BONNET TYPE OUTSIDE SCREW-YOKE
BONNET ATTACHMENT METHOD BOLTED
FEATURES PROVIDED BONNET PACKING
MANUFACTURERS CODE 81349
NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MILV22094

Restrictions/Controls & Freight Information | NSN 4820-00-781-7820

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.
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
No Freight Information

Management | NSN 4820-00-781-7820

Category Code Description
Cognizance Codes7HDepot level reparable shipboard and base equipment, assemblies, components and repair parts related to Naval Sea Systems Command equipment
Naval Inventory Control Point, Mechanicsburg
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
Source of SupplyNRPNAVICP-ERP
700 Robbins Avenue
Philadelphia, PA 19111-5098
AgencyDNDepartment of the Navy
Service OrganizationLLead Service - 22 (Repairable)
ReparabilityHDepot Level Reparable
Acquisition Advice CodesPRESTRICTED REQUISITION - SECURITY ASSISTANCE PROGRAM (SAP) 1. Indicates item is stocked or acquired only for SAP (replaces Military Assistance Program (MAP)) requirements, or 2. Indicates item is nonstocked and materiel is ordered from the contractor for shipment directly to the foreign government. 3. Base, post, camp, or station will not requisition.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative