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 6240-01-485-0008
NSN 5965-01-053-6230
NSN 5960-00-431-8739
NSN 6240-01-525-2401
NSN 5910-00-223-0040
NSN 5915-00-900-3369
NSN 5965-00-445-1843
NSN 5985-01-628-7996
NSN 5975-00-504-8117
NSN 5950-00-232-9313
NSN 5945-01-381-1878
NSN 6130-00-780-3043