A quality prop hub should keep the propeller precisely centered on the prop shaft, attenuate vibrations, and prevent the shaft from the tremendous shock of impacting something submerged with the propeller. Hms hubs offer you superb quality products for propeller hubs. The VS-54 Hub is a product that provides better dampening vibrations. The product application is Tohatsu, Nissan (1986 and newer), thru hub exhaust. This product also replaces 370, 897001T, VS54. Key features: It can be attached and detached easily because of minimal parts It can be disassembled by basic tools 75 durometer scale of hardness and durability It reduces vibrations Efficient, Made from finest materials, and Last longer Specifications: Brand: HMS Hub SKU: VS-54 Weight: 0.50 lbs G/C Size: 3 Drive Type: 10 SPLINE Hub Type: RUBBER Spindle Length: 3.110" (~3 1/8) Rubber O.D.: 1.605" Max.Inside DIA.: 0.717" Uses wear ring: NONE Rubber Duro.: 75 Spline Count 10 SPLINE VS-54Spindle length: 3.110" (~3 1/8")Flange Dia.: **Rubber O.D.: 1.605"Max. Inside Dia.: 0.717"Uses Wear Ring: noneRubber Duro: 75Spline count: 10 spline