>> Search results for: PB1874 NSN Search Results National Stock Number (NSN) Description 6620-00-049-5741, 6620000495741 DIAPHRAGM 5355-00-351-4442 , 5355003514442 Cancelled -> Replaced by 5355003356285 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