>> Search results for: 8121N3009 NSN Search Results National Stock Number (NSN) Description 5330-00-821-7502, 5330008217502 RETAINER,PACKING 5330-01-220-5128 , 5330012205128 RETAINER,PACKING 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