5330-99-770-5177 (BS1806-224NBRM67)
5330-99-770-5177 is equivalent to manufacture part number 343. 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.