5330-01-368-5633 (6001121)
5330-01-368-5633 is equivalent to manufacture part number 121. It is a o-ring and is classified under Federal Supply Class 5330 (5330 - Packing and Gasket Materials), stocked for defense, aerospace, MRO, and industrial maintenance applications. This item is cataloged in the NATO supply system under 5330 - Packing and Gasket Materials and is available through NSN-PARTS for U.S. government MRO, and commercial procurement.