Symbols for marking electrical leads and ports on fluid power valves
standard by National Fluid Power Association, 09/01/1969

Groove dimensions for fluid power radial compression type piston rings
standard by National Fluid Power Association, 12/18/1973

Air line filter, regulator and/or lubricator – Pressure rating supplement to NFPA/T2.6.1 R2-2000, Fluid power components – Method for verifying the fatigue and establishing the burst pressure ratings of the pressure containing envelope of a metal fluid po
standard by National Fluid Power Association, 03/15/2000

Hydraulic filter/separator housing – Pressure rating supplement to NFPA/T2.6.1 R2-2000, Fluid power components – Method for verifying the fatigue and establishing the burst pressure ratings of the pressure containing envelope of a metal fluid power hydrau
standard by National Fluid Power Association, 03/15/2000

Finite Life Hydraulic Filter Pressure/Life Rating – Method For Verifying The Fatigue Life Rating And The Burst Pressure Rating Of The Pressure Containing Envelope Of A Spin-On Hydraulic Filter
standard by National Fluid Power Association, 05/10/1995

Fluid power components – Method for verifying the fatigue and establishing the burst pressure ratings of the pressure containing envelope of a metal fluid power component
standard by National Fluid Power Association, 03/01/2001

Hydraulic fluid power – Electrical connectors for use with industrial hydraulic integrated proportional valves – Dimensions and requirements
standard by National Fluid Power Association, 02/26/2002

Hydraulic fluid power systems – Methods for preventing external leakage
standard by National Fluid Power Association, 11/14/2007

Hydraulic fluid power – Petroleum fluids – Prediction of bulk moduli
standard by National Fluid Power Association, 06/12/1997

Recommendations for conservation, maintenance, and disposal of hydraulic fluids Information report (DOD approved)
standard by National Fluid Power Association, 08/30/1994