>> Search results for: SYC121 NSN Search Results National Stock Number (NSN) Description 4310-00-919-2559, 4310009192559 COMPRESSOR 4140-00-433-2975 , 4140004332975 IMPELLER,FAN,AXIAL 4310-00-055-0666, 4310000550666 COMPRESSOR UNIT,RECIPROCATING 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