>> Search results for: 13720931 NSN Search Results National Stock Number (NSN) Description 9520-01-681-1874, 9520016811874 CHANNEL,STRUCTURAL 9520-01-681-3388 , 9520016813388 CHANNEL,STRUCTURAL 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