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.254 Insulating Washers (Flat)

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*Slightly Chamfered to Permit Smooth Entry / Fit.

Build Part Number
Material & Shape
Tolerances		 All Technical Data
Worksheet Helper
Conversion Chart		 Metric Insulating Washers
Am. Standard Insulating Washers
.254 Inside Diameter - For 1/4" Fasteners
CHOOSE and write down your PART NUMBER
then Go to Skip Step 1
Part Number A C D Part Number A C D Part Number A C D  
WF3551 .375 .016 .254 WF3577 .531 .047 .254 WF3603 .750 .093 .254  
WF3552 .375 .031 .254 WF3578 .531 .062 .254 WF3604 .750 .125 .254  
WF3553 .375 .047 .254 WF3579 .531 .093 .254 WF3605 .812 .016 .254  
WF3554 .375 .062 .254 WF3580 .531 .125 .254 WF3606 .812 .031 .254  
WF3555 .375 .093 .254 WF3581 .562 .016 .254 WF3607 .812 .047 .254  
WF3556 .375 .125 .254 WF3582 .562 .031 .254 WF3608 .812 .062 .254  
WF3557 .406 .016 .254 WF3583 .562 .047 .254 WF3609 .812 .093 .254  
WF3558 .406 .031 .254 WF3584 .562 .062 .254 WF3610 .812 .125 .254  
WF3559 .406 .047 .254 WF3585 .562 .093 .254 WF3611 .875 .016 .254  
WF3560 .406 .062 .254 WF3586 .562 .125 .254 WF3612 .875 .031 .254  
 
Part Number A C D Part Number A C D Part Number A C D  
WF3561 .406 .093 .254 WF3587 .625 .016 .254 WF3613 .875 .047 .254  
WF3562 .406 .125 .254 WF3588 .625 .031 .254 WF3614 .875 .062 .254  
WF3563 .437 .016 .254 WF3589 .625 .047 .254 WF3615 .875 .093 .254  
WF3564 .437 .031 .254 WF3590 .625 .062 .254 WF3616 .875 .125 .254  
WF3565 .437 .047 .254 WF3591 .625 .093 .254 WF3617 .937 .016 .254  
WF3566 .437 .062 .254 WF3592 .625 .125 .254 WF3618 .937 .031 .254  
WF3567 .437 .093 .254 WF3593 .687 .016 .254 WF3619 .937 .047 .254  
WF3568 .437 .125 .254 WF3594 .687 .031 .254 WF3620 .937 .062 .254  
WF3569 .500 .016 .254 WF3595 .687 .047 .254 WF3621 .937 .093 .254  
WF3570 .500 .031 .254 WF3596 .687 .062 .254 WF3622 .937 .125 .254  
WF3571 .500 .047 .254 WF3597 .687 .093 .254 WF3623 1.000 .016 .254  
WF3572 .500 .062 .254 WF3598 .687 .125 .254 WF3624 1.000 .031 .254  
WF3573 .500 .093 .254 WF3599 .750 .016 .254 WF3625 1.000 .047 .254  
WF3574 .500 .125 .254 WF3600 .750 .031 .254 WF3626 1.000 .062 .254  
WF3575 .531 .016 .254 WF3601 .750 .047 .254 WF3627 1.000 .093 .254  
WF3576 .531 .031 .254 WF3602 .750 .062 .254 WF3628 1.000 .125 .254  
Tolerances

A

 Major Diameter + .010 / - .005
C Thickness .015  through  .063 ± .003
.064  through  .091 ± .006
.092 up   ± .009
D Inside Diameter + .010 /  - .000
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 & precision fasteners used by leading companies in nearly every industry since 1971.
 
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