>> Search results for: B57742 NSN Search Results National Stock Number (NSN) Description 4140-01-425-7134, 4140014257134 FAN,VANEAXIAL 5970-99-215-0818 , 5970992150818 INSULATION SLEEVING 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