Hastings 2.874"/73.00 mm Standard Bore, Single Cylinder Ring Set with 1.00 mm Top Ring, 1.00 mm Second Ring, and a First Oil Ring is 1.50 mm.
This Hastings Single Cylinder Ring Set has a top ring manufactured from steel with chrome ring surface treatment and a second ring manufactured from ductile iron with a phosphate ring surface treatment. The 1st oil control ring is manufactured of steel rail/stainless expansion with a chrome rail ring surface treatment.

Application Summary:

Year Make/Model
2006-2011 Honda Civic
2010-2014 Honda Insight
Attributes
1st Oil Groove 1.50
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.00
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2C5723S
California Proposition 65 No
Engborein 2.874
Engboremetric 73.00
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 1.00
Top Ring Surface Treatment CHROME
GTIN 00075538356981