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 6145-00-490-9180
NSN 5999-00-960-4308
NSN 6650-01-653-7714
NSN 2925-00-254-9776
NSN 5998-01-217-8477
NSN 5920-00-113-5215
NSN 6645-00-456-2219
NSN 6610-01-514-7755
NSN 5975-01-621-4135
NSN 5920-00-057-5934
NSN 5999-01-026-6777
NSN 5999-01-370-0335