This info can be found in your owner's manual and under the hood on a placard. Spark plug gap: inches (mm) 0.039 to 0.043 (1.0 to 1.1)
Most all auto spark plugs that are sold today are already properly gapped for the auto they are going into. If you visit your local auto parts store, they can look up the plugs for your Nissan Altima and you won't have to gap the plugs yourself.
0.044 is your spark plug gap.
The correct spark plug gap is .044
.044
0.44
Your gap should be (Gap 0.044inch) for DOHC 2.5l Altima
0.44 in.
1.1mm or .043 in.
0.44
.44
the spark plug gap is.044
The gap should be 0.043 inch.