>> Search results for: 3SU20 NSN Search Results National Stock Number (NSN) Description 6145-01-202-7771, 6145012027771 Cancelled -> Replaced by 6145004122686 4820-01-131-5735 , 4820011315735 VALVE ASSEMBLY 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