CASING COVER C I WITH SS 304 CLADDING FOR DRIVE SIDE, OF VACUUM PUMP MAKE PPI MODEL PL 1250, CONE SS 304, CLADDED FOR NON DRIVE END OF VACUUM PUMP MAKE PPI, MODEL PL 1250, CONE SS 304 CLADDED FOR DRIVE END, CASING, COVER C I WITH SS 304 CLADDING FOR NON DRIVE SIDE OF, VACUUM PUMP MAKE PPI MODEL PL 1250, ROTOR SS410, WITH SHAFTSHAFT SLEEVELOCK NUT and LOCK WASHER, EQP VACUUM PUMP MODEL PL 1250