{"product_id":"as568-468-o-ring-sealing-ring","title":"AS568-468 O-Ring – 19.455 in ID × 0.275 in CS | NBR, HNBR \u0026 FKM","description":"\u003cp\u003e\u003cstrong\u003eAS568-468 O-Ring – 19.455 in ID × 0.275 in CS | NBR, HNBR \u0026amp; FKM\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eRoyal Way supplies this standard AS568 size in NBR (Buna-N), HNBR (HSN) and FKM (Viton-type), with 70 and 90 Shore A options for maintenance, repair and production requirements.\u003c\/p\u003e\u003ch3\u003eSize Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAS568 size: AS568-468\u003c\/li\u003e\n\u003cli\u003eInside diameter (ID): 19.455 in \/ 494.16 mm\u003c\/li\u003e\n\u003cli\u003eCross section (CS): 0.275 in \/ 6.99 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter (OD): 20.005 in \/ 508.13 mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eMaterial and Hardness Options\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eNBR \/ Buna-N: commonly selected for petroleum oils and compatible hydraulic fluids\u003c\/li\u003e\n\u003cli\u003eHNBR \/ HSN: improved heat, ozone, aging and mechanical resistance compared with standard NBR\u003c\/li\u003e\n\u003cli\u003eFKM \/ Viton-type: selected for higher-temperature service and broader fluid compatibility\u003c\/li\u003e\n\u003cli\u003e70 Shore A: general sealing flexibility and conformity\u003c\/li\u003e\n\u003cli\u003e90 Shore A: greater extrusion resistance for suitable higher-pressure clearances\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Use\u003c\/h3\u003e\u003cp\u003eDesigned for equipment whose gland or groove is specified for AS568-468. Depending on the equipment design, this series is commonly encountered in large-bore housings, flanges, piping connections and heavy industrial or oilfield equipment.\u003c\/p\u003e\u003ch3\u003eOrdering and Fit Verification\u003c\/h3\u003e\u003cp\u003eAn AS568 dash number defines size, not universal equipment compatibility. Confirm groove dimensions, squeeze, stretch, clearance, pressure, temperature, fluid compatibility and backup-ring requirements before ordering or installation.\u003c\/p\u003e","brand":"Royal Way","offers":[{"title":"NBR (Buna-N) - 70 Shore A","offer_id":48819055394916,"sku":"OR468-B70","price":8.09,"currency_code":"USD","in_stock":true},{"title":"NBR (Buna-N) - 90 Shore A","offer_id":48819055427684,"sku":"OR468-B90","price":8.09,"currency_code":"USD","in_stock":true},{"title":"HNBR (HSN) - 70 Shore A","offer_id":48819055460452,"sku":"OR468-H70","price":65.41,"currency_code":"USD","in_stock":true},{"title":"HNBR (HSN) - 90 Shore A","offer_id":48819055493220,"sku":"OR468-H90","price":65.41,"currency_code":"USD","in_stock":true},{"title":"FKM (Viton-type) - 70 Shore A","offer_id":48819055525988,"sku":"OR468-F70","price":54.02,"currency_code":"USD","in_stock":true},{"title":"FKM (Viton-type) - 90 Shore A","offer_id":48819055558756,"sku":"OR468-F90","price":54.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/0243\/6708\/files\/as568-468-o-ring-sealing-ring.jpg?v=1784889506","url":"https:\/\/rwoiltool.com\/products\/as568-468-o-ring-sealing-ring","provider":"Royal Way Oil Tool","version":"1.0","type":"link"}