--- product_id: 12629379 title: "D12340449 Krytox 240AC Mil-Spec Grease Tube, MIL-PRF-27617 Type III, 2 oz" brand: "krytox" price: "$617.64" currency: USD in_stock: true reviews_count: 1 category: "Krytox" url: https://www.desertcart.us/products/12629379-d12340449-krytox-240ac-mil-spec-grease-tube-mil-prf-27617 store_origin: US region: United States of America --- # Nonflammable, no combustion Viscosity 243 cSt @ 40°C Temp range -34°C to 288°C D12340449 Krytox 240AC Mil-Spec Grease Tube, MIL-PRF-27617 Type III, 2 oz **Brand:** krytox **Price:** $617.64 **Availability:** ✅ In Stock ## Summary > ⚙️ Stay ahead with the grease that never quits — Krytox 240AC, where precision meets power. ## Quick Answers - **What is this?** D12340449 Krytox 240AC Mil-Spec Grease Tube, MIL-PRF-27617 Type III, 2 oz by krytox - **How much does it cost?** $617.64 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/12629379-d12340449-krytox-240ac-mil-spec-grease-tube-mil-prf-27617) ## Best For - krytox enthusiasts ## Why This Product - Trusted krytox brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Mechanical Endurance:** Maintains grease integrity under intense mechanical stress with minimal viscosity change—keeps bearings running smooth. - • **Extreme Temp Resilience:** Operates flawlessly from -34°C to scorching 288°C, ensuring peak performance in any climate. - • **Oxygen-Compatible Formula:** Highly resistant to gaseous and liquid oxygen attack, perfect for critical industrial and aerospace applications. - • **Military-Grade Reliability:** MIL-PRF-27617 Type III certified, trusted by defense and aerospace industries for uncompromising durability. - • **Unmatched Chemical Stability:** Silicone-free and corrosion-resistant, safe on plastics, metals, and paints—engineered for longevity. ## Overview Krytox 240AC Mil-Spec Grease is a 2 oz tube of premium polytetrafluoroethylene-based lubricant, engineered to withstand extreme temperatures (-34°C to 288°C) and harsh chemical environments. Certified to MIL-PRF-27617 Type III standards, it offers exceptional mechanical stability, nonflammability, and compatibility with plastics, metals, and paints. Ideal for industrial, aerospace, and oxygen-rich applications, this grease ensures reliable, long-lasting lubrication under the most demanding conditions. ## Description The 240 Grade Greases are the original products that the MIL-SPEC PRF-27617 was written for and have been continuously certified as such since. Many synthetic greases show excellent performance in one or more categories, but only Krytox Greases combine stability, and chemical inertness with outstanding lubrication performance under a variety of conditions. Krytox greases have excellent mechanical stability in bearings. They do not break down under mechanical stress and lose their ability to hold oil. Krytox 240 series greases are mixed in a grease worker for 60, 10, 000, and 100, 000 strokes and tested for changes in hardness. All Krytox 240 series greases had changes of less than 30 points on the NLGI penetration scale and were within 1/2 grade of their original starting point. Roll stability tests were performed according to ASTM D1831 for 2 hr with the 4500-lbf reference load. The penetration change was minor and was within 1/2 grade of the original starting point. Review: Buy in Bulk for Max Savings or thank a taxpayer! - This lube is the very best you can use for John Deere front axle bearings and my '77 Mustang II. Unfortunately I needed 2 lbs of this stuff and had to slip the bulk cartridges out of the supply room on base. jk ## Features - 240AC Temp Range: -34C thru 288C : Base Oil Viscosity 243cSt/40C. Stable in a wide variety of operating conditions / environments - Nonflammable: Krytox Grease contains only carbon, oxygen & fluorine, (no hydrogen or silicone). Will not burn or support combustion. Passes impact standards with LOX, Nitrogen Tetroxide, Nitric Acid - Krytox Grease are silicone free and do not damage plastics or elastomers or cause corrosion to metals. Compatible with all paints and finishes - Even at the most extreme of operating temps and pressures, Krytox Grease is highly resistant to attack by gaseous and liquid oxygen. The preferred choice in oxygen use and manufacturing industry - Exposure to significant radiation causes only minor depolymerization (8% decrease of viscosity) and no formation of solids or sludge or change in appearance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00NXULJ7C | | Best Sellers Rank | #164,166 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #774 in Industrial Lubricants | | Brand | Krytox | | Brand Name | Krytox | | Container Type | Tube | | Customer Reviews | 3.0 out of 5 stars 1 Review | | Global Trade Identification Number | 00036121970632 | | Included Components | 2oz Tube | | Item Form | Grease | | Item Weight | 2 Ounces | | Liquid Volume | 2 Fluid Ounces | | Manufacturer | DuPont | | Material | Polytetrafluoroethylene | | Model Number | D12340449 | | Number of Items | 1 | | Package Information | Tube | | Part Number | D12340449 | | Recommended Uses For Product | Bearings | | Specific Uses For Product | Industrial Applications, Oxygen Systems, Various Operating Conditions | | UPC | 036121970632 | | Unit Count | 2.0 Ounce | | Upper Temperature Rating | 288 Degrees Celsius | | Viscosity | 243cSt/40C | ## Product Details - **Brand:** Krytox - **Item Weight:** 2 Ounces - **Liquid Volume:** 2 Fluid Ounces - **Material:** Polytetrafluoroethylene - **Package Information:** Tube ## Images ![D12340449 Krytox 240AC Mil-Spec Grease Tube, MIL-PRF-27617 Type III, 2 oz - Image 1](https://m.media-amazon.com/images/I/51OZbTNbL9L.jpg) ## Customer Reviews ### ⭐⭐⭐ Buy in Bulk for Max Savings or thank a taxpayer! *by J***S on April 6, 2019* This lube is the very best you can use for John Deere front axle bearings and my '77 Mustang II. Unfortunately I needed 2 lbs of this stuff and had to slip the bulk cartridges out of the supply room on base. jk --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.us/products/12629379-d12340449-krytox-240ac-mil-spec-grease-tube-mil-prf-27617](https://www.desertcart.us/products/12629379-d12340449-krytox-240ac-mil-spec-grease-tube-mil-prf-27617) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-12*