>> Search results for: APPROVAL124378 NSN Search Results National Stock Number (NSN) Description 2540-99-253-8400, 2540992538400 INSTALLATION KIT,B, 2540-99-253-9682 , 2540992539682 INSTALLATION KIT,A, 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