>> Search results for: B40112 NSN Search Results National Stock Number (NSN) Description 6640-01-281-8778, 6640012818778 HOOD,FUME,LABORATORY 5930-00-768-8623 , 5930007688623 SWITCHROTARY 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