NFPA/T3.6.54 R1-1997 (R2014)
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NFPA/T3.6.54 R1-1997 (R2014)
Standard Title:Hydraulic fluid power – Cylinder ports – SAE straight thread O-ring and four-bolt flange ports – ISO straight thread O-ring and four-bolt flange ports – Heavy duty and light duty square head tie rod cylindersReferenced Standards:ANSI/B93.2, ANSI/(NFPA)T3.6.7 R2, ISO 6149-1, ISO 6162, SAE J1926-1, SAE J846, SAE J518Standard Scope:This standard includes recommended sizes of SAE and ISO straight thread O-ring and four-bolt flange ports in NFPA standard heavy duty and light duty hydraulic cylinders. This standard intends to: encourage the use of SAE O-ring sealed ports; promote cylinder interchangeability by establishing uniform O-ring port recommendations.