>> Search results for: NCS138 NSN Search Results National Stock Number (NSN) Description 5305-66-059-2826, 5305660592826 SCREW,MACHINE 4240-66-066-9313 , 4240660669313 LENS,HELMET,WELDER' 4240-66-066-9314, 4240660669314 SPECTACLES,INDUSTRI 4240-66-066-9312 , 4240660669312 HELMET,WELDER'S 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