>> Search results for: R157988PC1 NSN Search Results National Stock Number (NSN) Description 4320-00-739-4709, 4320007394709 DRIVE SHAFT AND PISTON 4320-00-509-1862 , 4320005091862 ROTATING UNIT,PUMP 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