>> Search results for: K89C438971 NSN Search Results National Stock Number (NSN) Description 4920-21-871-7590, 4920218717590 SUB-ASSEMBLY KIT,PR 4920-21-871-6699 , 4920218716699 KIT,INSTALLATION OF 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