Richard Nakka's Experimental Rocketry Site
Recommended o-ring size and Should be 2% minimum, 10% maximum 0 in Diametrical clearance in "thou". Should be between 1.5 and 5 "thou" g si O - R I N G D E S I G N E R FOR ROCKET NOZZLES & BULKHEADS per ARP 1232 specifications (Aerospace Recommended Practice) For 200 series (1/8") AS568A o-rings Instructions o-ring o-ring o-ring …