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Use appropriate NPT fittings for secure attachment
Steel (body and ball)
Use a separate pressure switch connected to an audible or visual alarm to warn of high pressure (recommended by GRACO)
GRACO grease pumps typically feature robust construction with steel
The GRACO 15D128 is a socket head cap screw (SHCS) with an M8 thread and 18 mm length
GRACO Retainer, Spring - (SKU: 188001) Use appropriate NPT fittings forThe GRACO 188001 Retainer, Spring is a mechanical component designed to secure and maintain the position of internal parts within GRACO fluid pressure regulators and related equipment. Its material is not explicitly specified in available documentation, but it is typically a spring steel or similar durable metal, intended for repeated use in high pressure environments. Its primary function is to ensure proper assembly and reliable operation of the
