ALLVAR Alloys washers and spacers compensate for the natural expansion and contraction of other materials with variations in temperature. ALLVAR washers/spacers combat other materials thermal displacement to keep constant force loads - no matter if it's 80°C or -150°C. Athermalization of fastened assemblies can be achieved by eliminating the thermal stress induced by different materials.


Kit includes:
• 12 hours of design and engineering time from Allvar engineers
• Set of washers (quantity depends on size of washers and the application)

Washers available in #2, #4, #6, and #8 sizes. Custom washer and spacer sizes are available 

Type B Regular Plain Washers

Nominal Washer Size Washer Inside Diamter Washer Outside Diameter Thickness Range Washer Standards ASME B18.24 Part Number Item Number
2 0.094" 0.250" 0.028" - 0.036" ASME B18.22.1 AEW26X08R000GY0A1 AW30-0002 Contact for pricing
4 0.125" 0.375" 0.036" - 0.045" ASME B18.22.1 AEW26X11R000GY0A1 AW30-0004 Contact for pricing
6 0.156" 0.438" 0.036" - 0.045" ASME B18.22.1 AEW26X13R000GY0A1 AW30-0006 Contact for pricing
8 0.188" 0.500" 0.036" - 0.045" ASME B18.22.1 AEW26X16R000GY0A1 AW30-0008 Contact for pricing