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Fittings Guide

Dimensions Hex Head Bushings ASME B16.11 NPS 1/2 to 4

NPS Minimum Length
E
Minimum Hex Height
C
Nominal
F
1/2 14 5 22
3/4 16 6 27
1 19 6 35
1.1/4 21 7 44.5
1.1/2 21 8 51
2 22 9 63.5
2.1/2 27 10 76
3 28 10 89
4 32 13 117.5
NPS Minimum Length
E
Minimum Hex Height
C
Nominal
F
Bushing
Bushing
General notes:
  • Dimensions are in millimeters unless otherwise indicated.
  • Cautionary Note Regarding Hex Bushings:
    Hex head bushings of one-size reduction should not be used in services where they might be subject to harmful loads and forces other than internal pressures.
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