Catalog number Trade size
(inch)
I.D.
(mm) 
A
(mm) 
B
(mm) 
C
(mm) 
D
(mm) 
Metric Thread Packing
(pcs)
N21410316
(no insulating liner)
3/8" 11.5 29.0 31.0 12.5 16.0 M16x1.5 50
N21410320 3/8" 11.5 29.0 31.0 14.5 20.0 M20x1.5 50
N21410420 1/2" 14.5 34.5 32.0 14.5 20.0 M20x1.5 50
N21410625 3/4" 19.5 41.5 37.0 16.0 25.0 M25x1.5 25
N21411032 1" 25.0 46.0 46.5 19.5 32.0 M32x1.5 25
N21411240 1-1/4" 33.5 55.5 53.0 20.5 40.0 M40x1.5 15
N21411450 1-1/2" 38.5 63.2 60.0 24.5 50.0 M50x1.5 10
N21412063 2" 49.5 76.0 75.0 27.0 63.0 M63x1.5 5