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Soft Copper Crush Washer

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Our soft annealed Copper Crush Washers are ideal for sealing brake unions. Crush washers should be used with large diameter fittings for proper sealing. Our minimum hex size recommendations are shown in the table below.

Sold individually.

Copper Crush Washer Dimensions
ID (Nominal) OD Thickness Minimum Hex Size
5/16" / 8mm 0.435" 3/64" 7/16"
3/8" / 10mm 0.585" 3/64" 9/16"
7/16" 5/8" 1/16" 9/16"
1/2" 11/16" 1/16" 5/8"

Enter desired order quantities below, then click the "Add selected quantities to cart" button.

Order Qty
Part No.
Desc.
Price
Status

3241-5/16
Condition: New

Soft Copper Crush Washer, 5/16 inch ID

1 to 11: $0.89

12 to 149: $0.79

150 & up: $0.68

In Stock

3241-3/8
Condition: New

Soft Copper Crush Washer, 3/8 inch (or 10mm) ID

1 to 11: $0.89

12 to 149: $0.79

150 & up: $0.68

In Stock

3241-7/16
Condition: New

Soft Copper Crush Washer, 7/16 inch ID

1 to 11: $0.89

12 to 149: $0.79

150 to 1999: $0.68

2000 & up: call   

In Stock

3241-1/2
Condition: New

Soft Copper Crush Washer, 1/2 inch ID

1 to 11: $0.89

12 to 149: $0.79

150 to 1999: $0.68

2000 & up: call   

In Stock
 

Best Crush Washers Ever!

5

I love my new Soft Copper Crush Washers. They are such an important part that I purchased them while replacing my bent Banjo Brake Adapter, even though there is no proof my existing washers were damaged when I bounced on my head. I'm delighted to find it is stocked when I need it, because it would be really hard to make one myself. You won't be disappointed if you get one yourself! Yeah, I'm c-n-p'-ing.

dmrthanyou

Clear Lake, CA

I would buy again--service excellent.

5

hard to find exact type .

hightest

charleston sc

Good to have a few spares around

5

Handy to have a few around in case of damage or loss. Avoids risk of a tendency to over-tightening in order 'stop' a leakage. Cheap disposable part for peace of mind.

DL the Engineer

Brampton, Ontario, Canada

true

"Finally found a source for copper crush washers."

5

Used to seal a Schrader valve in oleo strut up to 1500 psi. Where I have had "O" rings leak in the past I have yet to have a copper crush washer fail. Am happy to have found a source with Pegasus Auto Racing Supply and with their policy of doing small orders.

Howard: Lifetime motor head

Ephrata, Washington

true

Hard to find locally

5

These parts were hard to find locally and shipped quick.All local parts were half as thick as originals and below my standards.

Unckledonn

Wood Dale, IL

true

Good Product

4

I run an auto repair shop. For the last several years I've had a terrible time with the copper washers leaking that come with rebuilt calipers and new brake hoses (50% leak rate). They just seam too hard. I was searching for a solution with better washers. So far the first eight calipers I've installed with these washers have not leaked. To this point I'm extremely pleased. I think they're a great product! Thank you Pegasus Racing!

Pete's Auto

Irwin, Iowa

true

Perfect fit

5

The generic copper crush washers I get from my local parts store usually don't work that well. These are perfect for Master Cylinders and Calipers and actually are soft enough to crush and more importantly, they are the exact size and always seal the first time. I stock up on them whenever I purchase from Pegasus.

Mike

USA

true

it was just what the customer wanted

4

was able to buy off your website and come pick up. Easy peezy!

Dog lover

New Berlin, Wi

true

Soft Copper Crush Washer

4.8 8

100.0