>> Search results for: 642B334 NSN Search Results National Stock Number (NSN) Description 4820-00-626-5516, 4820006265516 VALVE,RELIEF,PRESSURE AND TEMPERATURE 4820-00-879-3574 , 4820008793574 VALVE,SAFETY RELIEF 4820-01-348-1159, 4820013481159 VALVE,SAFETY RELIEF 4820-01-314-8507 , 4820013148507 VALVE,SAFETY RELIEF 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