asme-b18-21-1-countersunk-external-tooth-lock-washers

Dimensions of ASME B18.21.1 Countersunk External Tooth Lock Washers

Nominal Washers SizeInside Diameter, AOutside Diameter, B, ReferenceThickness, CLength, D
MaxMinMaxMinMaxMin
40.1230.1130.2130.0190.0150.0650.050
60.1500.1400.2890.0210.0170.0920.082
80.1770.1670.3220.0210.0170.0990.083
100.2050.1950.3540.0250.0200.1050.088
120.2310.2200.4210.0250.0200.1280.118
1/40.2670.2550.4540.0250.0200.1280.113
160.2870.2730.5050.0280.0230.1470.137
5/160.3330.3180.5990.0280.0230.1920.165
3/80.3980.3830.7650.0340.0280.2550.242
7/160.4630.4480.8670.0450.0370.2700.260
1/20.5290.5120.9760.0450.0370.3040.294

Notes : Dimensions are in inches.

  • Suggested angle or mating components is 80-82 deg.
  • Washers size are intended for use with comparable nominal screw sizes.
  • For reference purposes only; not subject to inspection.