Cylinder, Design Options

Design Feature	M	P/SP	JG	R	RJ	E	T/K/C/D	Z/U/B/V
Ion nitrided piston rod	S	S	S	S	S	S	S	S
Ion nitrided cylinder body	NA	NA	NA	S	S	S	S	S
Combination piston/rider rings	O	O	O*	O	NA	S	NA	NA
Wearbands	NA	NA	O	NA	S	NA	S	S
Top and bottom lube	O	O	**	**	**	**	S	S
Non-interchangeable valves	NA	NA	NA	S	S	S	S	S
Cylinder drilled for indicator ports	NA	NA	O	S	S	S	S	S
Non-metallic plate compressor valves	S	S	S***	S	S	S	S	S
Notes: S-Standard Design Features O-Price Book Option MV-Consult Mt. Vernon for price and availability NA-This design feature is not available for the class Standard and Option denotes general cylinder line designs. Refer to the Price Book for specific Standard Design and Options for each Cylinder Class.
* Standard on 13 1/2 JG and any cylinders 13-1/2 Class and greater, if it does not have a wear band (see price book). Top and bottom lube standard on 13-1/2 Class cylnders and greater and on 1-3/4SG-FS-HE Class cylinders. * Metallic valve plates are standard on concentric ring valves for the 2-1/2SG-FS-HE and 1-3/4SG-FS-HE Class cylinders.