Schaefer Half-Moon Mast Base/Hinged/Alum. Max Line 3/8" (10 mm) Ronstan Series 42 Height: 1 5/8 in

Height: 1 5/8 in

stabilised Nylon

Radii R (in) - 2 4/8

Lewmar Size 50 Flat Base Ocean Hatch

Most other types of grease

Schaefer Half-Moon Mast Base/Hinged/Alum. Max Line 3/8" (10 mm) Ronstan Series 42 Height: 1 5/8 inProduct Description Schaefer Half Moon Mast Base Hinged Alum. Max Line 3 8" (10 mm) Half Moon hinged base block. Heavy duty Stainless Steel base and cage ensure high strength. SS Springs keep block upright. Aluminum UC sheave features Nomex(tm) Teflon(tm) bearing with Delrin(tm) ball bearings for a low friction high strength sheave. Specifications: Fixed Alum. Sheave Dia.: 2 3 8 in. (60 mm) Max Line: 3 8 in. (10 mm) Max Wire: 3 16 in. (5 mm) Length: 4