Tilnefningarkóðar og stærðir O-hringa sem notaðar eru í SAE J518 og ISO 6162-1 Flange Groove staðla:
ISO 3601-1 stærðarkóði ISO 3601-1 merkingarnúmer Inni í þvermáli Krossmál mm mm
O-hringur-ISO3601-1-210A-18,64 × 3,53-N 18,64 3,53 214
O-hringur-ISO3601-1-214A-24,99 × 3,53-N 24,99 219
O-hringur-ISO3601-1-219A-32,92 × 3,53-N 32,92 222
O-hringur-ISO3601-1-222A-37,69 × 3,53-N 37,69 225
O-hringur-ISO3601-1-225A-47,22 × 3,53-N 47,22 228
O-hringur-ISO3601-1-228A-56,74 × 3,53-N 56,74 232
O-hringur-ISO3601-1-232A-69,44 × 3,53-N 69,44 237
O-hringur-ISO3601-1-237A-85,32 × 3,53-N 85,32 241
O-hringur-ISO3601-1-241A-98,02 × 3,53-N 98,02 245
O-hringur-ISO3601-1-245A-110,72 × 3,53-N 110,72 253
O-hringur-ISO3601-1-253A-136,12 × 3,53-N 136,12
