Inconel 718 Washers to Large Flat Washers ASME B18.2.6 Hardened Steel Circular and Circular Clipped Washers
ASME B18.2.6 Hardened Steel Circular and Circular Clipped Washers Dimensions
| Basic Size or Nominal Washer Size [Note (1)] |
Inside Diameter, I.D. | Outside Diameter, O.D. | Thickness, T | Minimum Edge Distance, E [Note (2)] |
|||||
|---|---|---|---|---|---|---|---|---|---|
| Nominal | Min. | Max. | Nominal | Min. | Max. | Max. | Min. | ||
| ½ | 0.531 | 0.531 | 0.563 | 1.063 | 1.031 | 1.095 | 0.097 | 0.177 | 0.438 |
| ⅝ | 0.688 | 0.688 | 0.720 | 1.313 | 1.281 | 1.345 | 0.122 | 0.177 | 0.547 |
| ¾ | 0.813 | 0.813 | 0.845 | 1.469 | 1.437 | 1.501 | 0.122 | 0.177 | 0.656 |
| ⅞ | 0.938 | 0.938 | 0.970 | 1.750 | 1.718 | 1.782 | 0.136 | 0.177 | 0.766 |
| 1 | 1.063 | 1.063 | 1.085 | 2.000 | 1.937 | 2.063 | 0.136 | 0.177 | 0.875 |
| 1⅛ | 1.188 | 1.188 | 1.251 | 2.250 | 2.187 | 2.313 | 0.136 | 0.177 | 0.984 |
| 1¼ | 1.375 | 1.375 | 1.438 | 2.500 | 2.437 | 2.563 | 0.136 | 0.177 | 1.094 |
| 1⅜ | 1.500 | 1.500 | 1.563 | 2.750 | 2.687 | 2.813 | 0.136 | 0.177 | 1.203 |
| 1½ | 1.718 | 1.718 | 1.688 | 3.000 | 2.937 | 3.063 | 0.136 | 0.177 | 1.313 |
NOTES:
(1) Nominal washer sizes are intended for use with comparable nominal bolt diameters.
(2) Clipped edge, E, shall not be closer than 0.875 times the nominal bolt diameter from the center of the
washer.
HARDENED STEEL WASHERS: ASTM F436/F436M Circular and Circular Clipped Washers
- Circular and Circular Clipped Washer Dimensions. All circular and circular clipped washers shall conform to the dimensions given in Table 4.1.1-1. ASME B18.2.6-2019
- Tolerances. Washer inside diameter, outside diameter, thickness, and edge distance shall be in accordance with Table 4.1.1-1. The deviation from flatness shall not exceed 0.010 in. per inch as the maximum deviation from a straight edge placed on the cut side. Circular runout of the outside diameter with respect to the hole shall not exceed 0.030 FIM. Burrs shall not project above immediately adjacent washer surface by more than 0.010 in.
- Finish. Unless otherwise specified, washers shall be supplied with a plain (as-processed) finish. If a finish is required, it shall conform to those approved in the applicable material standard.
- Material and Mechanical Properties. Materials and properties shall conform to the requirements specified in ASTM F436/F436M.
- Workmanship. Washers shall be free of excess mill scale, excess coatings, and foreign material on bearing surfaces. Arc and gas cut washers shall be free of metal splatter.
- Designation.
(a) Washers shall be designated by the following data in the sequence shown: product name,
specification, nominal
size (fraction or decimal), material specification, and protective finish (if required).
EXAMPLES:
(1) Hardened Steel Circular Washer, ASME B18.2.6, 11∕8, ASTM F436/F436M, Mechanical Zinc, ASTM B695 Class 55, Type 1
(2) Hardened Steel Circular Washer, ASME B18.2.6, ASTM F436/F436M, Type 1, 11∕8, Mechanical Zinc per ASTM B695 Class 55
(b) For a part identifying number (PIN), refer to ASME B18.24.