National Item Identification Number
00-505-0987
005050987
4820-00-505-0987
4820-00-505-0987
National Stock Number
Item Name
VALVE,LIFT-CHECK
Federal Supply Class
4820
Description
A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first 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 second 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, STOP-CHECK and VALVE, STOP-LIFT-CHECK.
Commercial and Government Entity Code (Supplier Data)
Reference Numbers (Part Numbers)
820-4445890-11REVC
Required Categories
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS
CRITICALITY CODE JUSTIFICATION
Required Description
SELECTED AND TESTED FOR NUCLEAR PROPULSION PLANT SYSTEMS
ZZZY
80064
820-44458