DIMENSIONS (As per IS: 4985-2000)All sizes in mm

 Normal outside
Dia
Dn		 Mean
outside
 dia
 dem		 Outside
diameter
at any point
 de		 Class-1
0.25MPa(2.5kg/cm2)		 Class-2
0.40 MPa
(4.0 kg/cm2)		 Class-3
0.60 MPa
(6.0 kg/cm2)		 Class-4
0.80 MPa
(8.0 kg/cm2)		 Class-5
1.00MPa
(10.0kg/cm2)		 Class-6
1.25MPa
(12.5kg/cm2)		 Socket
inner
Diameter
dim		 Minimul
depth of
engagement
m
Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max                                  
63 63.0 63.4 62.2 63.8 - - 1.5 1.9 2.2 2.7 2.8 3.3 3.5 4.1 4.3 5.0 63.6 64.3 64
75 75.0 75.4 74.1 75.9 - - 1.8 2.2 2.6 3.1 3.4 4.0 4.2 4.9 5.1 5.9 75.6 76.3 67
90 90.0 90.4 88.9 91.1 1.3 1.7 2.1 2.6 3.1 3.7 4.0 4.6 5.0 5.7 6.1 7.1 90.7 91.5 70
110 110.0 110.4 108.6 111.4 1.6 2.0 2.5 3.0 3.7 4.3 4.9 5.6 6.1 7.1 7.5 8.7 110.8 111.7 75
125 125.0 125.4 123.5 126.5 1.8 2.2 2.9 3.4 4.3 5.0 5.6 6.4 6.9 8.0 8.5 9.8 125.9 126.9 78
140 140.0 140.5 138.3 141.7 2.0 2.4 3.2 3.8 4.8 5.5 6.3 7.3 7.7 8.9 9.5 11.0 140.9 141.9 81
160 160.0 160.5 158.0 162.0 2.3 2.8 3.7 4.3 5.4 6.2 7.2 8.3 8.8 10.2 10.9 12.6 161.0 162.1 86
180 180.0 180.6 177.8 182.2 2.6 3.1 4.2 4.9 6.1 7.1 8.0 9.2 9.9 11.4 12.2 14.1 181.1 182.2 90
200 200.0 200.6 197.6 202.4 2.9 3.4 4.6 5.3 6.8 7.9 8.9 10.3 11.0 12.7 13.6 15.7 201.2 202.3 94
225 225.0 225.7 222.3 227.7 3.3 3.9 5.2 6.0 7.6 8.8 10.0 11.5 12.4 14.3 15.3 17.6 226.4 227.5 100
250 250.0 250.8 247.0 253.0 3.6 4.2 5.7 6.5 8.5 9.8 11.2 12.9 13.8 15.9 17.0 19.6 251.5 252.6 105
280 280.0 280.9 276.6 283.4 4.1 4.8 6.4 7.4 9.5 11.0 12.5 14.4 15.4 17.8 19.0 21.9 281.6 283.0 112
315 315.0 316.0 311.2 318.8 4.6 5.3 7.2 8.3 10.7 12.4 14.0 16.1 17.3 19.9 21.4 24.7 316.8 318.3 118