Image 1 of 1 5" OD Flange x 3 1/2" D x 3 1/4" $135.04 This coupling measures approximately 5" OD (flange) x 3 1/2" D overall and has an approximate 3 1/4" pilot diameter. Add To Cart Added! This coupling measures approximately 5" OD (flange) x 3 1/2" D overall and has an approximate 3 1/4" pilot diameter. You Might Also Like Quick View Solid Hub Coupling - Flange 4.75" | Bore 1.375" | F-Pilot Dia 2.5" | 6 Bolt - $277.86 Quick View Coupling - Flange 4" | Bore 1.00" | M-Pilot Dia 2.5" | 4 Bolt - .375" $170.65 Quick View Solid Hub Coupling - Flange 5" | Bore 1.375" | M-Pilot Dia 2.25" | 4 Bo $0.01 Quick View 4" Solid Coupling for 3/4" Shaft $134.30 Quick View Solid Hub Flange - 5-3/4" x 1-3/4" Bore $418.77