EFC International
EFC International
1940 Craigshire St. Louis,
MO 63146-4008
Phone: 1 314.434.28881
Contact: www.efc-intl.com/contact
Website: www.efc-intl.com
Print Back
Compression Rings were originally developed for use in all types of knob-to-shaft applications on thermoplastic nobs with split hubs. They are also used as a Compression Limiter inside a bolt hole, to protect plastics from cracking when the bolt is tightened.
Compression Rings
Unit of Measure
1 2 3 4 

Item #

Item Name

Band Width (Decimal)

Inside Diameter

Material Thickness (Decimal)

18000214-01 N/A 0.609 Inch (in) Inside Diameter Compression Ring N/A 0.250 in6.35 mm N/A 0.609 in15.47 mm N/A 0.022 in0.56 mm
18000215-01 N/A 0.609 Inch (in) Inside Diameter Compression Ring N/A 0.250 in6.35 mm N/A 0.609 in15.47 mm N/A 0.031 in0.79 mm
18000216-01 N/A 0.620 Inch (in) Inside Diameter Compression Ring N/A 0.250 in6.35 mm N/A 0.620 in15.75 mm N/A 0.014 in0.36 mm
18000217-01 N/A 0.765 Inch (in) Inside Diameter Compression Ring N/A 0.250 in6.35 mm N/A 0.765 in19.43 mm N/A 0.025 in0.64 mm
Unit of Measure
1 2 3 4