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PISTON RINGS AND PISTONS CATALOG

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Performance Rings

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Parts Details

Part #

Description

Diameter mm

Packaging

Measurements / Surface Treatments / CYL

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Legend

Surface treatments	Piston Ring Positions	Piston Ring Types
Cr: CHROME	UCR: Upper Control Ring	BF-IB: Barrel Face Inner Bevel
Fe: PHOSPHATE	LCR: Lower Control Ring	BF-K2: Barrel Face Single Keystone
GN: Gas Nitrided	OCR: Oil Control Ring	LG: Large Gap
PV: Physical Vapor Deposition (PVD)		NIFF-H: Nifflex-H
		NIFF-S: Nifflex-S
		SG: Small Gap
		T1: Taper
		T1-RB: Taper Reverse Bevel
		TUC: Taper Under Cut
		TUH: Taper Under Hook