>> Search results for: 1577AS1011 NSN Search Results National Stock Number (NSN) Description 4220-01-199-4974, 4220011994974 LIFE PRESERVER,VEST 4220-01-463-0197 , 4220014630197 Cancelled -> Replaced by 4220011994974 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