A precision machined and shaped metal block, on which marine propellers are checked, to insure accuracy of pitch, boring, blade spacing, and layout. It is also used as a gauge or an anvil on which a damaged propeller can be beaten and restored to its original pitch.
NSN 5975-01-087-1592
NSN 5945-00-339-2755
NSN 5965-01-265-2980
NSN 6110-00-377-9160
NSN 6320-00-468-4270
NSN 5960-01-135-5639
NSN 6145-01-310-0283
NSN 5975-01-198-0651
NSN 6110-01-452-7613
NSN 6645-01-116-3423
NSN 5895-01-257-5578
NSN 5990-00-935-5610