>> Search results for: MB4520 NSN Search Results National Stock Number (NSN) Description 5140-01-431-9272, 5140014319272 TOOL BOX,PORTABLE 5330-99-500-6807 , 5330995006807 GASKET 3120-99-961-5686, 3120999615686 BUSHING,SLEEVE 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