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.254 Insulating Washers (Shoulder)

 Back To Insulating Washers Page
*Slightly Chamfered to Permit Smooth Entry / Fit.

Build Part Number
Material & Shape
Shoulder Length		 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
Chart 1- Length of Shoulder- Dimension E
Other Code
Dim. E		 A
.015		 B
.025		 C
.040		 E
.058		 F
.085		 G
.120		 H
.182		 J
.215		 K
.245		 M
.300		 R
.360		 S
.425		 V
.490		  
Part Number A B C D E L Part Number A B C D E L  
WS1551 .375 .310 .031 .254 See
Chart 1		 L=C+E WS1611 .625 .370 .031 .254 See
Chart 1		 L=C+E  
WS1552 .375 .310 .047 .254 WS1612 .625 .370 .047 .254
WS1553 .375 .310 .060 .254 WS1613 .625 .370 .060 .254
WS1554 .437 .310 .031 .254 WS1614 .625 .400 .031 .254
WS1555 .437 .310 .047 .254 WS1615 .625 .400 .047 .254
WS1556 .437 .310 .060 .254 See
Chart 1		 L=C+E WS1616 .625 .400 .060 .254 See
Chart 1		 L=C+E  
WS1557 .437 .340 .031 .254 WS1617 .625 .430 .031 .254
WS1558 .437 .340 .047 .254 WS1618 .625 .430 .047 .254
WS1559 .437 .340 .060 .254 WS1619 .625 .430 .060 .254
WS1560 .437 .370 .031 .254 WS1620 .625 .465 .031 .254
WS1561 .437 .370 .047 .254 See
Chart 1		 L=C+E WS1621 .625 .465 .047 .254 See
Chart 1		 L=C+E  
WS1562 .437 .370 .060 .254 WS1622 .625 .465 .060 .254
WS1563 .468 .340 .031 .254 WS1623 .625 .495 .031 .254
WS1564 .468 .340 .047 .254 WS1624 .625 .495 .047 .254
WS1565 .468 .340 .060 .254 WS1625 .625 .495 .060 .254

 
Part Number A B C D E L Part Number A B C D E L  
WS1566 .468 .370 .031 .254 See
Chart 1		 L=C+E WS1626 .625 .530 .031 .254 See
Chart 1		 L=C+E  
WS1567 .468 .370 .047 .254 WS1627 .625 .530 .047 .254
WS1568 .468 .370 .060 .254 WS1628 .625 .530 .060 .254
WS1569 .468 .400 .031 .254 WS1629 .750 .310 .031 .254
WS1570 .468 .400 .047 .254 WS1630 .750 .310 .047 .254
WS1571 .468 .400 .060 .254 See
Chart 1		 L=C+E WS1631 .750 .310 .060 .254 See
Chart 1		 L=C+E  
WS1572 .500 .310 .031 .254 WS1632 .750 .340 .031 .254
WS1573 .500 .310 .047 .254 WS1633 .750 .340 .047 .254
WS1574 .500 .310 .060 .254 WS1634 .750 .340 .060 .254
WS1575 .500 .340 .031 .254 WS1635 .750 .370 .031 .254
WS1576 .500 .340 .047 .254 See
Chart 1		 L=C+E WS1636 .750 .370 .047 .254 See
Chart 1		 L=C+E  
WS1577 .500 .340 .060 .254 WS1637 .750 .370 .060 .254
WS1578 .500 .370 .031 .254 WS1638 .750 .400 .031 .254
WS1579 .500 .370 .047 .254 WS1639 .750 .400 .047 .254
WS1580 .500 .370 .060 .254 WS1640 .750 .400 .060 .254

 
Part Number A B C D E L Part Number A B C D E L  
WS1581 .500 .400 .031 .254 See
Chart 1		 L=C+E WS1641 .750 .430 .031 .254 See
Chart 1		 L=C+E  
WS1582 .500 .400 .047 .254 WS1642 .750 .430 .047 .254
WS1583 .500 .400 .060 .254 WS1643 .750 .430 .060 .254
WS1584 .500 .430 .031 .254 WS1644 .750 .465 .031 .254
WS1585 .500 .430 .047 .254 WS1645 .750 .465 .047 .254
WS1586 .500 .430 .060 .254 See
Chart 1		 L=C+E WS1646 .750 .465 .060 .254 See
Chart 1		 L=C+E  
WS1587 .562 .310 .031 .254 WS1647 .750 .495 .031 .254
WS1588 .562 .310 .047 .254 WS1648 .750 .495 .047 .254
WS1589 .562 .310 .060 .254 WS1649 .750 .495 .060 .254
WS1590 .562 .340 .031 .254 WS1650 .750 .530 .031 .254
WS1591 .562 .340 .047 .254 See
Chart 1		 L=C+E WS1651 .750 .530 .047 .254 See
Chart 1		 L=C+E  
WS1592 .562 .340 .060 .254 WS1652 .750 .530 .060 .254
WS1593 .562 .370 .031 .254 WS1653 .750 .560 .031 .254
WS1594 .562 .370 .047 .254 WS1654 .750 .560 .047 .254
WS1595 .562 .370 .060 .254 WS1655 .750 .560 .060 .254

 
Part Number A B C D E L Part Number A B C D E L  
WS1596 .562 .400 .031 .254 See
Chart 1		 L=C+E WS1656 .750 .590 .031 .254 See
Chart 1		 L=C+E  
WS1597 .562 .400 .047 .254 WS1657 .750 .590 .047 .254
WS1598 .562 .400 .060 .254 WS1658 .750 .590 .060 .254
WS1599 .562 .430 .031 .254 WS1659 .750 .620 .031 .254
WS1600 .562 .430 .047 .254 WS1660 .750 .620 .047 .254
WS1601 .562 .430 .060 .254 See
Chart 1		 L=C+E WS1661 .750 .620 .060 .254 See
Chart 1		 L=C+E  
WS1602 .562 .465 .031 .254 WS1662 .750 .650 .031 .254
WS1603 .562 .465 .047 .254 WS1663 .750 .650 .047 .254
WS1604 .562 .465 .060 .254 WS1664 .750 .650 .060 .254
WS1605 .625 .310 .031 .254 WS1665 .750 .685 .031 .254
WS1606 .625 .310 .047 .254 See
Chart 1		 L=C+E WS1666 .750 .685 .047 .254 See
Chart 1		 L=C+E  
WS1607 .625 .310 .060 .254 WS1667 .750 .685 .060 .254
WS1608 .625 .340 .031 .254          
WS1609 .625 .340 .047 .254          
WS1610 .625 .340 .060 .254
Tolerances
A Major Diameter ± .005
B Shank Diameter + .000 /  - .005
C Thickness of Head ± .005
D Inside Diameter + .006 /  - .000
E Length of Shoulder ± .005
L Overall Length + .010 /  - .005
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UNICORP is a worldwide leader in manufacturing stock and custom electronic hardware,
handles and precision fasteners used by leading companies in nearly every industry since 1971.
Unicorp,  291 Cleveland St., Orange, New Jersey  07050  USA
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