MIL-DTL-83140A
    Military Specification
        
    
    
            
                
   
            Type I - 19 x 7 - Nonrotating for aircraft rescue hoist
Type II 10 x 7 - Nonrotating for cargo handling (winching)
        
Type II 10 x 7 - Nonrotating for cargo handling (winching)

 
                                                                