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Plain Washers
plain-washers
Type A Plain Washers
(44)- Preferred sizes are for the most part from series previously designated "Standard Plate" and "SAE." Where common sizes existed in the two series, the SAE size is designated "N" (narrow) and the Standard Plate "W" (wide). These sizes as well as all other sizes of Type A Plain Washers are to be ordered by ID, OD and thickness dimensions.
- Nominal washer sizes are intended for use with comparable nominal screw or bolt sizes.
- The 0.734 in., 1.156 in. and 1.469 in. outside diameters avoid washers which could be used in coin operated devices.
Type A Plain Washers - Table 1B
(37)- The sizes are to be ordered by ID, OD, and thickness dimensions.
- The 0.734 in. and 1.469 in. outside diameters avoid washers which could be used in coin operated devices.
Type B Plain Washers
(96)- Nominal washer sizes are intended for use with comparable nominal screw or bolt sizes.
- Inside and outside diameters shall be concentric within at least the inside diameter tolerance.
- The 0.734" and 1.469" outside diameters avoid washers which could be used in coin operated devices.
- Washers shall be flat within 0.005" for basic outside diameters up to and including 0.875" and within 0.010" for larger outside diameters.
