National Stock Number
                                            4820-00-444-1570
                                    
                                
                            
                            
                                National Stock Number (NSN) 4820-00-444-1570, or NIIN 004441570, (valve,expansion) was assigned December 30, 1970 in the Federal Logistics Information System (FLIS).  NIIN 004441570 was cancelled on January 2, 1998, with a cancelled status of "Item is Cancelled WITHOUT Replacement." There is no known replacement specified for this stock number. This NSN replaces 1 stock number, 4820005915334. 
There are no manufacturer part numbers associated to this NSN.  
This part number has not been procured by the US Government in over 5 years. 
 
   
This NSN is assigned to Item Name Code (INC) 05493. [A SELF-ACTING VALVE SPECIFICALLY DESIGNED FOR USE IN REFRIGERATION SYSTEMS FOR CONTINUAL CONTROL OF RATE OF FLOW OF REFRIGERANT. IT MAY BE ACTUATED BY A THERMOSTATIC ELEMENT OR SELF-ACTUATED.]. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 4820004441570 contains an unknown precious metal. 
This information was last updated on Aug 01, 2025.