Bore does not extend all the way through seat
A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore designed to accommodate the end of the spring. It is used to position the spring, but does not encase the spring or restrain lateral motion. It may be used in conjunction with a retainer, helical compression spring. Excludes washer (1), (as modified); seat, ball socket and holder, spring. See also rotor, engine poppet valve.
NSN 7035-01-049-6776
NSN 5975-01-004-7966
NSN 5920-01-316-2140
NSN 6685-01-566-7938
NSN 5905-00-219-8748
NSN 6145-00-515-6931
NSN 5855-01-449-5724
NSN 5998-01-507-2820
NSN 5905-01-295-9043
NSN 6220-01-310-7166
NSN 6685-00-259-3013
NSN 5998-00-418-8670