>> Search results for: B21373 NSN Search Results National Stock Number (NSN) Description 5360-00-316-4490, 5360003164490 SPRING,HELICAL,TORSION 5305-99-109-0766 , 5305991090766 SCREW,MACHINE 1 Related Inventory 440BS031B2137-3A Readily AvailableAdd to RFQ 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