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NFPA/T3.6.54 R1-1997 (R2019)
Hydraulic fluid power - Cylinder ports - SAE straight thread O ring and four bolt flange ports - ISO straight thread original four bolt flange ports - Heavy duty and light duty square head tie rod cylinders
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.
Content Provider
National Fluid Power Association [nfpa-fluid]