>> Search results for: BS4518024530 NSN Search Results National Stock Number (NSN) Description 5331-99-327-4221, 5331993274221 O-RING 5330-99-372-8598 , 5330993728598 RING,SEALING,TOROID 5330-99-852-8309, 5330998528309 RING,SEALING,TOROID 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