Hastings 2.992"/76.00 mm Bore +.030 Over Size, Single Cylinder Ring Set with 1.50 mm Top Ring, 1.50 mm Second Ring, and a First Oil Ring is 4.00 mm.
This Hastings Single Cylinder Ring Set has a top ring manufactured from steel with triple chrome ring surface treatment and a second ring manufactured from grey 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
1982 Nissan 310
1988-1992 Nissan Hikari
1983 Nissan Pulsar
1983-1988 Nissan Pulsar NX
1982-1988 Nissan Sentra
Attributes
1st Oil Groove 4.00
1st Oil Ring Material STEEL RAIL/STAINLESS EXP
2nd Groove 1.50
2nd Ring Surface Treatment PHOSPHATE
Alternate Part Number 2C6151S.030
California Proposition 65 No
Engborein 2.992
Engboremetric 76.00
Hazardous Material Code N
Life Cycle Status Code Available to Order
NAFTA Preference Criterion Code B
SDR Required Flag N
Top Groove 1.50
GTIN 00075538111191