>> Search results for: PK273 NSN Search Results National Stock Number (NSN) Description 5999-01-239-7817, 5999012397817 HEAT SINK,ELECTRICAL-ELECTRONIC 8145-21-920-3419 , 8145219203419 SHIPPING AND STORAG 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