>> Search results for: 28WYL NSN Search Results National Stock Number (NSN) Description 6635-01-309-1240, 6635013091240 FILM,RADIOGRAPHIC 6635-01-428-3404 , 6635014283404 FILM,RADIOGRAPHIC 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