>> Search results for: MS20221A3 NSN Search Results National Stock Number (NSN) Description 3020-00-541-1630, 3020005411630 Cancelled -> Replaced by 3020005409999 1640-01-161-1360 , 1640011611360 PULLEY,GROOVE 3020-01-013-0387, 3020010130387 PULLEY BLOCK ASSEMBLY 3940-00-349-5059 , 3940003495059 BLOCK,TACKLE 1 Related Inventory Search You can use this search box to continue searching. Search parameters can include any combination of characteristics, specifications, description, partial part numbers, NSN or other stocking number. Special characters are not needed and are automatically stripped before searching. Do you sell this part? Become part of our growing pool of certified suppliers. Send Information