Product Details | STOP-CHECK VALVE

4820-01-220-6595 A valve with a bolt or stem that may be mechanically actuated to two 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. The valve disk may be spring loaded. It may be inline or cartridge (manifold) design. See also VALVE (1), LIFT-CHECK and VALVE (1), STOP-LIFT-CHECK.20248100015Valves, Powered48200018Valves, Nonpowered

Part Alternates: 8032177525, 803-2177525, 8032177525S331, 803-2177525-S331, 4820-01-220-6595, 01-220-6595, 4820012206595, 012206595

Valves | Valves, Nonpowered

Supply Group (FSG) NSN Assign. NIIN
48 16-NOV-85 01-220-6595

Drawings & Photos | NSN 4820-01-220-6595


Demand History | NSN 4820-01-220-6595

Part Number Request Date QTY Origin
4820-01-220-6595 2012-06-08 2 DIBBS
4820-01-220-6595 2012-06-08 3 DIBBS
4820-01-220-6595 2011-09-16 2 DIBBS
4820-01-220-6595 2011-09-16 3 DIBBS

Cross Reference | NSN 4820-01-220-6595

Part Number Cage Code Manufacturer
803-2177525 80064 NAVAL SHIP SYSTEMS COMMAND
803-2177525-S331 80064 NAVAL SHIP SYSTEMS COMMAND
803-2177525-SC31 80064 NAVAL SHIP SYSTEMS COMMAND

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Technical Data | NSN 4820-01-220-6595

Characteristic Specifications
MATERIAL STEEL CORROSION RESISTING BODY COBALT ALLOY FLOW CONTROL DEVICE STEEL COMP 316 STEM
MATERIAL DOCUMENT AND CLASSIFICATION ASTM A182, GRADE F316 ASSN STD SINGLE MATERIAL RESPONSE BODY MIL-C-24252 COND CA-7 MIL SPEC SINGLE MATERIAL RESPONSE FLOW CONTROL DEVICE ASTM A276 TYPE316 COND A ASSN STD SINGLE MATERIAL RESPONSE STEM
STYLE DESIGNATOR E1 STRAIGHT THRU
FLOW CONTROL DEVICE DISK
MAXIMUM OPERATING PRESSURE 900.0 POUNDS PER SQUARE INCH SINGLE RESPONSE
MAXIMUM OPERATING TEMP 775.0 DEG FAHRENHEIT SINGLE RESPONSE
VALVE OPERATION METHOD MANUAL
CONNECTION TYPE UNTHREADED INTERNAL PIPE ALL ENDS
CONNECTION STYLE B20B SOCKET ALL ENDS
NOMINAL PIPE SIZE ACCOMMODATED 0.500 INCHES ALL ENDS
MOUNTING POSITION HORIZONTAL
BONNET TYPE INSIDE SCREW
BONNET ATTACHMENT METHOD BOLTED

Restrictions/Controls & Freight Information | NSN 4820-01-220-6595

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:BMunitions List Item - Mutilation (MUT) to the point of scrap required. (Formerly: Demilitarization not required. Trade Security Controls (TSCs) required at disposition.)
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
No Freight Information