10 inch ASME B16.21 Non-Metallic Flat Gasket Dimensions
10 inch (DN 250) to ASME B16.21: Inside dia 273 mm; Class 150 340 mm; Class 300 362 mm; Class 600 400 mm.
Key to dimensions
10 inch ASME B16.21 Non-Metallic Flat Gasket Dimensions — all dimensions
Flat ring gaskets for raised-face flanges (mm)
| Dimension | Value | Equivalent |
|---|---|---|
| Inside dia — ID | 273 mm | 10.75 in |
| Class 150 — OD | 340 mm | 13.39 in |
| Class 300 — OD | 362 mm | 14.25 in |
| Class 600 — OD | 400 mm | 15.75 in |
Values are nominal, from ASME B16.21 Non-Metallic Flat Gasket Dimensions. Verify critical dimensions against the current edition of the standard before design, purchase or fabrication.
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FAQ
10 inch ASME B16.21 Non-Metallic Flat Gasket Dimensions: common questions
What are the 10 inch ASME B16.21 Non-Metallic Flat Gasket Dimensions?
10 inch (DN 250) to ASME B16.21: Inside dia 273 mm; Class 150 340 mm; Class 300 362 mm; Class 600 400 mm.
Does Teshi Group manufacture 10 inch gaskets?
Yes. Teshi Group is an OEM manufacturer in India of gaskets to ASME B16.21, in carbon, alloy, stainless, duplex, super duplex, nickel alloys, titanium and Cu-Ni, with EN 10204 3.1 certificates.
Can I download the 10 inch dimensions as a PDF?
Yes. Use “Download PDF for this size” on this page to get a single-size, print-ready PDF with the drawing and every tabulated dimension, or download the full ASME B16.21 Non-Metallic Flat Gasket Dimensions chart.
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Teshi Group manufactures them in India — send your size, rating and material and get a quote in 24–48 hours.
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