NS EN 3748 : 1ED 2002

1 Scope
2 Normative references
3 Symbols
4 Required characteristics
  4.1 Configuration - Dimensions - Tolerances
      4.1.1 Radial sealing - Rod housing:
            Configuration code A
      4.1.2 Radial sealing - Bore housing:
            Configuration code B
      4.1.3 Axial sealing for internal pressure:
            Configuration code C
      4.1.4 Axial sealing for external pressure:
            Configuration code D
5 Designation
6 Drawing presentation
  6.1 Configuration code A
  6.2 Configuration code B
  6.3 Configuration code C
  6.4 Configuration code D

Describes the dimensions of grooves for use with o-rings according to EN standards for aerospace applications.