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Piston Style - Imperial




Piston Clearance Limits
Bore Size Range
Max. Diametrical Clearance
0.250" to 0.500"
0.004"
0.501" to 1.750"
0.005"
1.751" to 4.875"
0.007"
4.875" to 9.000"
0.009"
9.001" and up
0.010"
Part Numbers
Nominal Reference
A
Bore Diameter
B
Groove Diameter
C
Groove Length
I.D.
O.D.
C/S
Tolerance   
+0.001 -0.001
+0.002 -0.000
+0.010 -0.000
TPO 0375
3/16
3/8
3/32
0.375
0.190
0.150
TPO 0437
1/4
7/16
3/32
0.437
0.252
0.150
TPO 0500
5/16
1/2
3/32
0.500
0.315
0.150
TPO 0562
5/16
9/16
1/8
0.562
0.317
0.185
TPO 0625
3/8
5/8
1/8
0.625
0.380
0.185
TPO 0687
7/16
11/16
1/8
0.687
0.442
0.185
TPO 0750
1/2
3/4
1/8
0.750
0.505
0.185
TPO 0812
9/16
13/16
1/8
0.812
0.567
0.185
TPO 0875
5/8
7/8
1/8
0.875
0.630
0.185
TPO 0937
11/16
15/16
1/8
0.937
0.692
0.185
TPO 1000
3/4
1
1/8
1.001
0.756
0.185
TPO 1062
13/16
1 - 1/16
1/8
1.063
0.818
0.185
TPO 1125
7/8
1 - 1/8
1/8
1.126
0.881
0.185
TPO 1187
15/16
1 - 3/16
1/8
1.188
0.943
0.185
TPO 1250
1
1 - 1/4
1/8
1.251
1.006
0.185
TPO 1312
1 - 1/16
1 - 5/16
1/8
1.313
1.068
0.185
TPO 1375
1 - 1/8
1 - 3/8
1/8
1.376
1.131
0.185
TPO 1437
1 - 3/16
1 - 7/16
1/8
1.438
1.193
0.185
TPO 1500
1 - 1/4
1 - 1/2
1/8
1.501
1.256
0.185
TPO 15001
1 - 1/4
1 - 1/2
1/8
1.501
1.256
0.235
TPO 15002
1 - 1/4
1 - 1/2
1/8
1.501
1.256
0.304
TPO 1562
1 - 5/16
1 - 9/16
1/8
1.563
1.318
0.185
TPO 1625
1 - 3/8
1 - 5/8
1/8
1.626
1.381
0.185
TPO 1687
1 - 7/16
1 - 11/16
1/8
1.688
1.442
0.185
TPO 1750
1 - 1/2
1 - 3/4
1/8
1.751
1.506
0.185
TPO 17501
1 - 1/2
1 - 3/4
1/8
1.751
1.506
0.235
TPO 17502
1 - 1/2
1 - 3/4
1/8
1.751
1.506
0.304
TPO 1875
1 - 1/2
1 - 7/8
3/16
1.876
1.502
0.280
TPO 2000
1 - 5/8
2
3/16
2.001
1.627
0.280
Part Numbers
Nominal Reference
A
Bore Diameter
B
Groove Diameter
C
Groove Length
I.D.
O.D.
C/S
Tolerance   
+0.001 -0.001
+0.002 -0.000
+0.010 -0.000
TPO 20001
1 - 5/8
2
3/16
2.001
1.627
0.334
TPO 20002
1 - 5/8
2
3/16
2.001
1.627
0.424
TPO 2125
1 - 3/4
2 - 1/8
3/16
2.126
1.752
0.280
TPO 2250
1 - 7/8
2 - 1/4
3/16
2.251
1.877
0.280
TPO 22501
1 - 7/8
2 - 1/4
3/16
2.251
1.877
0.334
TPO 22502
1 - 7/8
2 - 1/4
3/16
2.251
1.877
0.424
TPO 2375
2
2 - 3/8
3/16
2.376
2.002
0.280
TPO 23752
2
2 - 3/8
3/16
2.376
2.002
0.424
TPO 2500
2 - 1/8
2 - 1/2
3/16
2.501
2.127
0.280
TPO 25001
2 - 1/8
2 - 1/2
3/16
2.501
2.127
0.334
TPO 25002
2 - 1/8
2 - 1/2
3/16
2.501
2.127
0.424
TPO 2625
2 - 1/4
2 - 5/8
3/16
2.626
2.252
0.280
Tolerance   
+0.002 -0.002
+0.003 -0.001
+0.010 -0.000
TPO 2750
2 - 3/8
2 - 3/4
3/16
2.751
2.377
0.280
TPO 27502
2 - 3/8
2 - 3/4
3/16
2.751
2.377
0.424
TPO 2875
2 - 1/2
2 - 7/8
3/16
2.876
2.502
0.280
TPO 28752
2 - 1/2
2 - 7/8
3/16
2.876
2.502
0.424
TPO 3000
2 - 5/8
3
3/16
3.001
2.627
0.280
TPO 30001
2 - 5/8
3
3/16
3.001
2.627
0.334
TPO 30002
2 - 5/8
3
3/16
3.001
2.627
0.424
TPO 3125
2 - 3/4
3 - 1/8
3/16
3.126
2.752
0.280
TPO 3250
2 - 7/8
3 - 1/4
3/16
3.251
2.877
0.280
TPO 3375
3
3 - 3/8
3/16
3.377
3.003
0.280
TPO 3500
3 - 1/8
3 - 1/2
3/16
3.502
3.128
0.280
TPO 35001
3 - 1/8
3 - 1/2
3/16
3.502
3.128
0.334
TPO 35002
3 - 1/8
3 - 1/2
3/16
3.502
3.128
0.424
TPO 3625
3 - 1/4
3 - 5/8
3/16
3.627
3.253
0.280
TPO 3750
3 - 3/8
3 - 3/4
3/16
3.752
3.378
0.280


Part Numbers
Nominal Reference
A
Bore Diameter
B
Groove Diameter
C
Groove Length
I.D.
O.D.
C/S
Tolerance   
+0.002 -0.002
+0.003 -0.001
+0.010 -0.000
TPO 3875
3 - 1/2
3 - 7/8
3/16
3.877
3.503
0.280
TPO 4000
3 - 5/8
4
3/16
4.002
3.628
0.280
TPO 40001
3 - 5/8
4
3/16
4.002
3.628
0.334
TPO 40002
3 - 5/8
4
3/16
4.002
3.628
0.424
TPO 4125
3 - 3/4
4 - 1/8
3/16
4.127
3.753
0.280
TPO 4250
3 - 7/8
4 - 1/4
3/16
4.252
3.878
0.280
TPO 4375
4
4 - 3/8
3/16
4.377
4.003
0.280
TPO 4500
4 - 1/8
4 - 1/2
3/16
4.502
4.128
0.280
TPO 45001
4 - 1/8
4 - 1/2
3/16
4.502
4.128
0.334
TPO 45002
4 - 1/8
4 - 1/2
3/16
4.502
4.128
0.424
TPO 4625
4 - 1/4
4 - 5/8
3/16
4.627
4.253
0.280
TPO 46251
4 - 1/4
4 - 5/8
3/16
4.627
4.253
0.334
TPO 4750
4 - 3/8
4 - 3/4
3/16
4.752
4.378
0.280
TPO 47502
4 - 3/8
4 - 3/4
3/16
4.752
4.378
0.424
TPO 4875
4 - 1/2
4 - 7/8
3/16
4.877
4.503
0.280
TPO 5000
4 - 5/8
5
3/16
5.003
4.629
0.280
TPO 50001
4 - 5/8
5
3/16
5.003
4.629
0.424
TPO 50002
4 - 1/2
5
1/4
5.000
4.524
0.475
TPO 50003
4 - 1/2
5
1/4
5.000
4.524
0.579
TPO 5125
4 - 5/8
5 - 1/8
1/4
5.128
4.649
0.366
TPO 5250
4 - 3/4
5 - 1/4
1/4
5.253
4.774
0.366
TPO 52502
4 - 3/4
5 - 1/4
1/4
5.253
4.774
0.579
TPO 5375
4 - 7/8
5 - 3/8
1/4
5.378
4.899
0.366
TPO 5500
5
5 - 1/2
1/4
5.503
5.024
0.366
TPO 55001
5
5 - 1/2
1/4
5.503
5.024
0.475
TPO 55002
5
5 - 1/2
1/4
5.503
5.024
0.579
TPO 5625
5 - 1/8
5 - 5/8
1/4
5.628
5.149
0.366
TPO 5750
5 - 1/4
5 - 3/4
1/4
5.753
5.274
0.366
TPO 5875
5 - 3/8
5 - 7/8
1/4
5.878
5.399
0.366
TPO 6000
5 - 1/2
6
1/4
6.003
5.524
0.366
TPO 60001
5 - 1/2
6
1/4
6.003
5.524
0.475
TPO 60002
5 - 1/2
6
1/4
6.003
5.524
0.579
TPO 6125
5 - 3/8
6 - 1/8
1/4
6.128
5.649
0.366
TPO 6250
5 - 3/4
6 - 1/4
1/4
6.253
5.774
0.366
TPO 62501
5 - 3/4
6 - 1/4
1/4
6.253
5.774
0.475
TPO 62502
5 - 3/4
6 - 1/4
1/4
6.253
5.774
0.579
Part Numbers
Nominal Reference
A
Bore Diameter
B
Groove Diameter
C
Groove Length
I.D.
O.D.
C/S
Tolerance   
+0.003 -0.003
+0.004 -0.002
+0.010 -0.000
TPO 6375
5 - 7/8
6 - 3/8
1/4
6.378
5.899
0.366
TPO 6500
6
6 - 1/2
1/4
6.503
6.024
0.366
TPO 65001
6
6 - 1/2
1/4
6.503
6.024
0.475
TPO 65002
6
6 - 1/2
1/4
6.503
6.024
0.579
TPO 6750
6 - 1/4
6 - 3/4
1/4
6.753
6.274
0.366
TPO 7000
6 - 1/2
7
1/4
7.003
6.524
0.366
TPO 70001
6 - 1/2
7
1/4
7.003
6.524
0.475
TPO 70002
6 - 1/2
7
1/4
7.003
6.524
0.579
TPO 7250
6 - 3/4
7 - 1/4
1/4
7.253
6.774
0.366
TPO 7500
7
7 - 1/2
1/4
7.503
7.024
0.366
TPO 75002
7
7 - 1/2
1/4
7.503
7.024
0.579
TPO 7750
7 - 1/4
7 - 3/4
1/4
7.753
7.274
0.366
TPO 8000
7 - 1/2
8
1/4
8.003
7.524
0.366
TPO 80002
7 - 1/2
8
1/4
8.003
7.524
0.579
TPO 8250
7 - 3/4
8 - 1/4
1/4
8.253
7.774
0.366
TPO 82501
7 - 3/4
8 - 1/4
1/4
8.253
7.774
0.475
TPO 8500
8
8 - 1/2
1/4
8.503
8.024
0.366
TPO 9000
8 - 1/2
9
1/4
9.003
8.524
0.366
TPO 90001
8 - 1/2
9
1/4
9.003
8.524
0.475
TPO 90002
8 - 1/2
9
1/4
9.003
8.524
0.579
TPO 9500
9
9 - 1/2
1/4
9.503
9.024
0.366
TPO 10000
9 - 1/2
10
1/4
10.003
9.524
0.366
TPO 100001
9 - 1/2
10
1/4
10.003
9.524
0.475
TPO 10500
10
10 - 1/2
1/4
10.503
10.024
0.366
TPO 11000
10 - 1/2
11
1/4
11.003
10.524
0.366
TPO 11500
11
11 - 1/2
1/4
11.503
11.024
0.366
TPO 12000
11 - 1/2
12
1/4
12.003
11.524
0.366
TPO 120001
11 - 1/2
12
1/4
12.003
11.524
0.475
TPO 12500
12
12 - 1/2
1/4
12.503
12.024
0.366
TPO 13000
12 - 1/2
13
1/4
13.003
12.524
0.366
TPO 130001
12 - 1/2
13
1/4
13.003
12.524
0.475
TPO 13500
13
13 - 1/2
1/4
13.503
13.024
0.366
TPO 14000
13 - 1/2
14
1/4
14.003
13.524
0.366
TPO 140001
13 - 1/2
14
1/4
14.003
13.524
0.475
TPO 15500
15
15 - 1/2
1/4
15.503
15.024
0.366