Standards
5 articles in standards
Backup Ring Standards Guide: AS8791, AS5781, AMS3678 & ASTM
The standards landscape for PTFE backup rings: SAE AS8791, AS5781, AS5860/61, AMS3678, ASTM D4745/D4894 — what each covers and how to specify anti-extrusion rings correctly.
Engineering Unit Conversions for Seals | MPa, bar, psi
Quick reference for pressure, temperature, force and hardness conversions when specifying O-rings and RFQ documents. MPa to bar, psi, °C to °F, Shore A to IRHD.
How to Measure an O-Ring: ID, CS & Standard Size Charts
Step-by-step guide to measuring O-ring inside diameter and cross-section. Find matching AS568, ISO 3601 and JIS B 2401 sizes from caliper readings.
AS568 Standard Guide: Sizes, Tolerances & Reference
Technical reference guide to AS568 O-ring standard covering 400+ dash sizes, cross-sectional series, tolerance classes and ISO 3601-1 conversions.
O-Ring Size Chart: AS568, ISO 3601 & Metric Reference
Complete O-ring size chart covering AS568, ISO 3601 and BS 1806 standards. Learn how to measure an O-ring in 3 easy steps. Free downloadable guide.