Bronze Lock Nut for FMC L Series Piston Pumps (SKU: 8309), 1/2"-13 hex nut forged from ASTM B505 C65500 silicon bronze (Cu≥88%, Sn≤1.5%), tensile strength ≥550MPa, threads conform to ASME B1.1 2A/3A standard, salt spray tested 2000h corrosion-free, API 7K mud pump piston rod compatible with anti-loosening stability under high-pressure drilling conditions.
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