Tenders for Supply of 4 Bolt Plummer Block Model No. Fsaf-517 4 Bolt Plummer Block Model No. Fsaf-517 To Suit Shaft Dia 2-15/16 Of Make:Winco/Skf/Ntn/Hari.. 4 Bolt Plummer Block Model No. Fsaf-517 To Suit Shaft Dia 2-15/16 Of Make: Winco/Skf/Ntn/Hari.