#2 (.086) SS, Vented - Flat Washer
Vented #2 (.086), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented #2 (.086), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented #4 (.112), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented #5 (.125), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented #6 (.138), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented #8 (.164), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented #10 (.190), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented 1/4 (.250), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented 5/16 (.312), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented 3/8 (.375), 18-8 Stainless Steel, Flat Washer10 per pack.
Vented 1/2 (.500), 18-8 Stainless Steel, Flat Washer10 per pack.
The use of 'Vented' flat washers inside a vacuum environment is critical. A non-vented, blind-threaded hole creates a gas pocket that's difficult or impossible to evacuate (pump down) without an escape path. A trapped gas will manifest it self as a 'virtual leak', which is difficult to locate and causes unwanted downtime. Accu-Glass vented washers are manufactured from vacuum compatible 18-8 grade stainless steel.