Keyed Pinion Shaft Oil Seal (L11/W11 Series, SKU 5257339), forged from ASTM F104 Type III fluoroelastomer (FKM) with composite frame via compression molding, operates at -20°C to 200°C, dynamic pressure ≤3500psi. API 7K certified for mud pump power ends, 35% enhanced sealing performance, compatible with FMC BEAN L11/W11 series.
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