What is AS568B O-Ring data?
This Aerospace Standard specifies the inside diameters, cross-sections, tolerances, and size identification codes (dash numbers) for O-rings used in sealing applications and for straight thread tube fitting boss gaskets.
What is the difference between AS568 and AS568A?
AS568 is generally considered to be the U.S. size standard and there is no difference between the AS568A, AS568B or AS568C designations.
What is AS568A?
The purpose of this Aerospace Standard (AS) is to set forth a standardized dash numbering system for O-Rings. Its only purpose is to standardize O-Ring sizes and dimensional tolerances and the means of identifying them dimensionally. …
What is a dash number for o-rings?
O-ring Size Chart
| Dash Number | Inches | mm |
|---|---|---|
| ID | CS | |
| -001 | 0.029 | 1.02 |
| -002 | 0.042 | 1.27 |
| -003 | 0.056 | 1.53 |
How are O-rings measured?
O-rings are measured in millimeters. Place the O-ring on a clean, flat, level surface. Determine the inside diameter. Use a ruler or calipers to measure from one inner edge to another. To measure the outside diameter, use a ruler or calipers to measure from one outer corner of the O-ring to the other outer corner.
How deep should an O ring groove be?
Cross Section & Groove Design Data
| Available Cross Sections for Encapsulated O-Rings & Groove Design Data | ||
|---|---|---|
| Inch | MM | Groove Depth |
| .063±.004 | 1.60±0.10 | .046 |
| .070±.004 | 1.78±0.10 | .049 |
| .079±.004 | 2.00±0.10 | .057 |
What is a Viton O ring?
The name Viton is a trademark, a bit like Hoover or Sellotape, and refers to fluorocarbon o rings, or FKM/FPM for short. This material has an excellent tolerance for high temperatures, resistance to oils, fuels and hydraulic fluids as well as aromatics and solvents.
How do you size an AO ring?
How to Measure O-Rings
- Place the O-ring on a clean, flat, level surface.
- Determine the inside diameter by using a ruler to measure from one inner edge to another.
- Use a ruler to measure the diameter, from one outer corner of the O-ring to the other outer corner.
- Finally, measure the cross-section.