Products: Negative CTE Washers

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The image shows three negative CTE washers with the word washers underneath.

Negative CTE thermal compensating washers and spacers from ALLVAR compensate for the natural expansion and contraction of other materials with variations in temperature. ALLVAR Alloy washers and spacers combat other materials’ thermal displacement to keep constant force loads – whether it’s 80°C or -150°C. Athermalization of fastened assemblies can be achieved by eliminating the thermal changes in clamping force induced by different materials’ CTEs.

ALLVAR is pleased to introduce commercially off-the-shelf (COTS) washers sizes #2, #4, #6, and #8. Other sizes and thickness are available upon request.

Washer Specifications

Nominal Washer size Washer Inside Diameter Washer Outside Diameter Thickness Washer Standards ASME B18.24 Part Number Item Number
Nominal Washer Size
Washer Inner Diameter
Washer Outer Diameter
Thickness
Washer Standard
ASME B18.22.1 Part No.
ALLVAR Item No.
#2
0.094"
0.250"
0.032"
ASME B18.22.1
AEW26X08R000GY0A1
AW30-0002
#4
0.125"
0.375"
0.040"
AEW26X11R000GY0A1
AW30-0004
#6
0.156"
0.438"
0.040""
AEW26X13R000GY0A1
AW30-0006
#8
0.188"
0.500"
0.040""
AEW26X16R000GY0A1
AW30-0008
Other
Custom
Custom
Custom
N/A
Custom
Custom Item

Pricing

Table Header Table Header
#2 Washers
Item No. AW20-002
Order Qty.
Unit Price (each)
6 - 24 pcs.
$116.77
25 - 50 pcs.
$105.10
51 - 100 pcs.
$87.58
100+ pcs.
Contact Us
Minimum order size is 6 pieces.
Table Header Table Header
#4 Washers
Item No. AW20-004
Order Qty.
Unit Price (each)
6 - 24 pcs.
$114.58
25 - 50 pcs.
$91.66
51 - 100 pcs.
$76.39
100+ pcs.
Contact Us
Minimum order size is 6 pieces.
Table Header Table Header
#6 and # 8 Washers
Item No. AW20-006 and AW20-008
Order Qty.
Unit Price (each)
6 - 24 pcs.
$108.07
25 - 50 pcs.
$86.46
51 - 100 pcs.
$72.05
100+ pcs.
Contact Us
Minimum order size is 6 pieces.

Custom Washers and Spacers Available

Need pricing for custom washers or spacers?  Please fill out the washer order request form and specify nominal washer size, inner diameter, outer diameter, and thickness. An ALLVAR representative will contact you within 2 business days with a quote for your request.

Request a Quote for Washers

Please fill out the following information. We will follow up with a formal quote for the above washers. If custom sizes are needed, please list each in the additional information field.

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