{"product_id":"value-collection-zmsch70138-o-ring-dash-138-buna-n-50-pack","title":"Value Collection ZMSCH70138 O-ring Dash 138 Buna-n 50-pack","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION ZMSCH70138 is a Dash 138 O-ring manufactured from Buna-N (nitrile butadiene rubber), one of the most widely used elastomers in fluid sealing applications. It measures 2.125 inches inside diameter, 2.313 inches outside diameter, and 0.094 inches thick with a round cross section. Rated at 70 Shore A hardness, this O-ring delivers reliable compression set performance along with strong tear and abrasion resistance. It is sold in a package of 50 and is appropriate for use by plumbers, HVAC technicians, hydraulic system technicians, and industrial maintenance professionals working with petroleum-based media.\u003c\/p\u003e\u003cp\u003eThis O-ring is suited for static and dynamic sealing applications where contact with petroleum products, hydraulic fluids, or oils is expected. The Buna-N compound performs across a working temperature range of -40 degrees F to 250 degrees F, making it a practical choice for residential and commercial plumbing, refrigeration service, fuel systems, and general industrial fluid handling. It conforms to SAE and MIL-Spec standards. Note that this elastomer should not be stored in direct sunlight or near motors and other electrical equipment that may generate ozone.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBuna-N (nitrile butadiene rubber) construction — excellent resistance to petroleum products and hydraulic fluids\u003c\/li\u003e\n\u003cli\u003eDash 138 sizing: 2.125 inches ID, 2.313 inches OD, 0.094 inches thick, round cross section\u003c\/li\u003e\n\u003cli\u003e70 Shore A hardness rating for firm compression set and abrasion resistance\u003c\/li\u003e\n\u003cli\u003eOperating temperature range: -40 degrees F to 250 degrees F\u003c\/li\u003e\n\u003cli\u003eMeets SAE and MIL-Spec standards\u003c\/li\u003e\n\u003cli\u003ePackaged in quantities of 50 for shop stock or service van inventory\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eCompatible with petroleum products and petroleum-based hydraulic fluids. Designed as a standard Dash 138 O-ring for use in any groove or port that accepts the AS568 Dash 138 O-ring dimension standard.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified technician following applicable codes such as the IPC for plumbing applications or manufacturer service documentation for HVAC and hydraulic equipment. Shut off fluid supply and relieve system pressure completely before replacing any O-ring seal. Lubricate the O-ring with a compatible fluid or assembly lubricant before seating to prevent tearing during installation. Do not use petroleum-based lubricants with elastomers not rated for petroleum compatibility.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInside Diameter\u003c\/strong\u003e: 2.125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutside Diameter\u003c\/strong\u003e: 2.313 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.094 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCross Section Shape\u003c\/strong\u003e: Round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDash Number\u003c\/strong\u003e: 138\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Buna-N (Nitrile Butadiene Rubber)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eColor\u003c\/strong\u003e: Black\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHardness\u003c\/strong\u003e: 70 Shore A (Hard)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Working Temperature\u003c\/strong\u003e: -40 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Working Temperature\u003c\/strong\u003e: 250 degrees F\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Media\u003c\/strong\u003e: Petroleum Products\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: SAE, MIL-Spec\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFDA Approved\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 50\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31401503\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: ZMSCH70138\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51698875662642,"sku":"ZMSCH70138","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/50dc2a46e059b9d1557da274804929e9.jpg?v=1788369268","url":"https:\/\/voomisupply.com\/products\/value-collection-zmsch70138-o-ring-dash-138-buna-n-50-pack","provider":"Voomi Supply","version":"1.0","type":"link"}