{"product_id":"aeroshell-750-turbine-oil","title":"AeroShell 750 Turbine Oil Synthetic Oil (DEF STAN 91-98 \/ NATO O-149)","description":"\u003ch3\u003eHigh-Load Turboprop Synthetic Oil\u003c\/h3\u003e\n\u003cp\u003eAeroShell Turbine Oil 750 (ASTO 750) is a specialized 7.5 mm²\/s (cSt) synthetic diester turbine oil engineered with a high-performance additive package to deliver exceptional load-carrying capacity and thermal-oxidative stability. Developed specifically to satisfy the stringent requirements of \u003cstrong\u003eDEF STAN 91-98\u003c\/strong\u003e (formerly DERD 2487), ASTO 750 provides superior lubrication for heavy-duty propeller reduction gearboxes in civil and military turboprop engines.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTurboprop \u0026amp; Gearbox Advantage:\u003c\/strong\u003e Qualified under NATO Code \u003cstrong\u003eO-149 (OX-38)\u003c\/strong\u003e, French AIR 3517A, and officially recognized as the analogue to Russian MN-7.5u (TU 38.1011722-85), AeroShell 750 prevents tooth scoring, gear wear, and sludge accumulation. It replaces legacy mineral\/piston oil blends in Eastern European turboprops while maintaining high-temperature gear protection under severe torque cycles.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrdering Information:\u003c\/strong\u003e\u003cbr\u003e• \u003cstrong\u003eBulk Hangar Packaging:\u003c\/strong\u003e Full Case of 24 Quart Cans (1 US Qt each) | \u003cstrong\u003eMFG #: 550049744\u003c\/strong\u003e\u003cbr\u003e• Synthetic diester chemistry. Please verify system seal and paint compatibility prior to application.\u003c\/p\u003e\n\u003ch3\u003eKey Characteristics \u0026amp; Performance Benefits\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDEF STAN 91-98 \u0026amp; NATO O-149 Approved:\u003c\/strong\u003e Fully qualified to British and NATO military specifications governing 7.5 cSt high-load turbine lubricants.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtreme Reduction Gearbox Protection:\u003c\/strong\u003e High-load carrying formulation shields high-torque propeller reduction gears and bearing surfaces from micro-pitting and scoring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRussian MN-7.5u Official Analogue:\u003c\/strong\u003e Direct replacement for TU 38.1011722-85 MN-7.5u and legacy mineral oil\/aircraft piston oil mixtures in regional turboprops.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThermal \u0026amp; Oxidative Defense:\u003c\/strong\u003e Resists oil breakdown, varnish, and acid formation during continuous high-temperature flight operations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete Hangar Supply Case:\u003c\/strong\u003e Packaged in a full case of 24 individual quarts to streamline fleet maintenance inventory replenishment.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Aviation Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBritish \u0026amp; European Civil Turboprops:\u003c\/strong\u003e Primary lubricating oil for civil turboprop engines requiring DERD 2487 \/ DEF STAN 91-98 standards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePropeller Reduction Gearboxes:\u003c\/strong\u003e Deployed in high-power reduction gear systems where 3 cSt or 5 cSt turbine oils lack sufficient load capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRussian \u0026amp; Eastern European Turboprops:\u003c\/strong\u003e Fully approved analogue for aircraft powerplants specifying MN-7.5u lubricant matrices.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustrial \u0026amp; Marine Gas Turbines:\u003c\/strong\u003e Suitable for specialized aeroderivative gas turbines requiring 7.5 cSt load-carrying synthetic fluids.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications \u0026amp; Military Approvals\u003c\/h3\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer \/ Product Line\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eShell Aviation \/ AeroShell® Turbine Oil 750 (ASTO 750)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBritish Military Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDEF STAN 91-98 (Replaces DERD 2487) | Joint Service Designation OX-38\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNATO \u0026amp; International Codes\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eNATO Code O-149 (Equivalent O-159) | French AIR 3517A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRussian Specification Analogue\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTU 38.1011722-85 Grade MN-7.5u (Replaces mineral\/piston oil blends)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBase Chemistry \u0026amp; Viscosity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSynthetic Diester | 7.5 cSt (mm²\/s) at 100°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePackaging Unit \u0026amp; Part Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCase of 24 Quarts (1 US Qt Cans) | MFG # 550049744\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Aeroshell","offers":[{"title":"Quart Can","offer_id":54701472940404,"sku":"750-1QT","price":28.0,"currency_code":"USD","in_stock":true},{"title":"Case of 24 QT","offer_id":51658505519476,"sku":"750-1QT-CS","price":685.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0888\/2991\/9604\/files\/aeroshell-750-turbine-oil-def-stan-91-98-case-550049744-quart.png?v=1787759533","url":"https:\/\/145.aero\/products\/aeroshell-750-turbine-oil","provider":"Aircraft Shop Supply","version":"1.0","type":"link"}