Eureka Sanitaire 4473 Victory 14 Inch Vacuum Base Assembly. 

Fits Eureka and Sanitaire Models: 4660AT, 4670AT, 4670AT-1, 4672ATV, 4674AT, 4675AT, 4640AV, 4641AVC, 4654AT, 4680AT, 4682AT-1, 4684AT-1, 4684B, 4685AT, 4686ATV, 4687AT, 4688ATV, 4689ATV, 4696AV. 

Manufacturer Part No.: 60701-11

E-6070-11