>> Search results for: B990180 NSN Search Results National Stock Number (NSN) Description 4730-01-455-8793, 4730014558793 SHIELD,OIL 5325-01-453-7113 , 5325014537113 RING,RETAINING 5305-01-453-6771, 5305014536771 SCREW,MACHINE 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