Sundyne Pump Seals ( High Speed Pump Seals) Mechanical seal for High Speed PumpType: SY0453G ( Similar to SE04AA53G) STATIONARY ASSEMBLYSTATIONARY RING: RESIN IMPREGNATED CARBON GRAPHITEO RING: VITONPIN: SS316SNAP RING: 17-7PHSPRING HOLDER: SS316SPRINGS: SS316ROTARY RING TYPE : 51A, 51B, 51C, 51D ... etc.MATERIALS: TUNGSTEN CARBIDE Mechanical seal for High Speed Pump