A replaceable cylindrical item designed to provide wear surface and maintain alignment of a reciprocating valve stem and the like, it may have a flange(s) and/or grooves.
NSN 5855-00-832-9341
NSN 6110-00-978-8329
NSN 6145-01-592-5741
NSN 5835-01-519-3834
NSN 6645-00-123-9134
NSN 6110-01-417-1811
NSN 5910-01-391-5009
NSN 5920-01-634-0250
NSN 6220-00-202-8591
NSN 6105-00-453-1949
NSN 5965-01-136-7970
NSN 5996-01-331-3204