{"product_id":"as568-208-o-ring-sealing-ring","title":"AS568-208 O-Ring – 0.609 in ID × 0.139 in CS | NBR, HNBR \u0026 FKM","description":"\u003cp\u003e\u003cstrong\u003eAS568-208 O-Ring – 0.609 in ID × 0.139 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: AS568-208\u003c\/li\u003e\n\u003cli\u003eInside diameter (ID): 0.609 in \/ 15.47 mm\u003c\/li\u003e\n\u003cli\u003eCross section (CS): 0.139 in \/ 3.53 mm\u003c\/li\u003e\n\u003cli\u003eOutside diameter (OD): 0.887 in \/ 22.53 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 AS568-208. Depending on the equipment design, this series is commonly encountered in compatible valves, pumps, hydraulic cylinders, pressure-control equipment and downhole service tools.\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":48768211222628,"sku":"OR208-B70","price":0.13,"currency_code":"USD","in_stock":true},{"title":"NBR (Buna-N) - 90 Shore A","offer_id":48768211255396,"sku":"OR208-B90","price":0.13,"currency_code":"USD","in_stock":true},{"title":"HNBR (HSN) - 70 Shore A","offer_id":48768211288164,"sku":"OR208-H70","price":0.71,"currency_code":"USD","in_stock":true},{"title":"HNBR (HSN) - 90 Shore A","offer_id":48768211320932,"sku":"OR208-H90","price":0.71,"currency_code":"USD","in_stock":true},{"title":"FKM (Viton-type) - 70 Shore A","offer_id":48768211353700,"sku":"OR208-F70","price":0.5,"currency_code":"USD","in_stock":true},{"title":"FKM (Viton-type) - 90 Shore A","offer_id":48768211386468,"sku":"OR208-F90","price":0.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0786\/0243\/6708\/files\/as568-208-o-ring-sealing-ring.jpg?v=1784889194","url":"https:\/\/rwoiltool.com\/products\/as568-208-o-ring-sealing-ring","provider":"Royal Way Oil Tool","version":"1.0","type":"link"}