RADCOLUBE® 6081N (Grade 1010N) is a high-purity, petroleum-based jet engine lubricating oil and fuel system preservative fluid manufactured in strict accordance with military specification MIL-PRF-6081E Grade 1010N. Formulated from premium hydrotreated naphthenic mineral basestocks blended with advanced anti-wear and oxidation inhibitors, Radcolube 6081N delivers exceptional low-temperature fluidity, thermal stability, and corrosion prevention. Grade 1010N is processed to meet ultra-strict particulate cleanliness standards, making it the primary preservative fluid for flushing, testing, and long-term storage preservation of aircraft turbine fuel systems, fuel control units, and legacy military jet engines.

Technical Specifications & Chemical Properties

• Manufacturer / Brand: Radco Industries, Inc. / RADCOLUBE®
• Part Number / Series: RADCOLUBE® 6081N
• Military Specification: MIL-PRF-6081E Grade 1010N (Qualified Product List / QPL Listed)
• NATO Code / Identifier: O-133 (Grade 1010 cross-reference)
• Fluid Base Type: Hydrotreated Light Naphthenic Mineral Base Oil
• Kinematic Viscosity (ASTM D445):
  • At 37.8°C (100°F): ~11.0 cSt
  • At -40°C (-40°F): ≤ 2,400 cSt (ensures rapid low-temperature flow)
• Flash Point (Cleveland Open Cup - ASTM D92): ≥ 159°C (319°F)
• Pour Point / Freezing Point: < -60°C (-76°F)
• Relative Density (at 15.6°C): ~0.87
• Appearance & Color: Clear, straw-yellow to amber liquid
• Shelf Life: 36 Months from Date of Manufacture (DOM) when stored in original unopened container

Approved Specifications & Military Conformance:

Radcolube 6081N holds official Quality Products List (QPL) status under defense and NATO military standards:

• MIL-PRF-6081E Grade 1010N QPL Certified: Qualified for military turbine engines and fuel system preservation protocols.
• Fuel System Preservation Cleanliness: Exceeds standard Grade 1010 requirements for particulate cleanliness, ensuring no orifice blockage in fuel metering components.
• Corrosion Protection: Inhibited against rust, oxidation, and metal staining during extended engine inactivity and storage.

Key Features & Performance Benefits

• Ultra-Clean Particulate Rating (1010N Grade): Formulated specifically to prevent clogging in fine-tolerance fuel pumps, nozzles, and fuel control valves.
• Exceptional Low-Temperature Fluidity: Freezing point below -60°C guarantees instantaneous fluid circulation during cold-weather engine starts and Arctic deployments.
• Superior Oxidation & Rust Resistance: Shields internal steel and alloy turbine components from corrosion during storage or inactive fleet periods.
• Low-Viscosity Mineral Formulation: Provides low friction drag while maintaining film strength on critical bearing surfaces.

Typical Applications

• Aircraft Fuel System Preservation: Standard preservation fluid for flushing, bench testing, and inhibiting aircraft engine fuel pumps, lines, and metering controls.
• Legacy Turbine Engine Lubrication: Serves as operational lubricating oil for specific military jet engines requiring MIL-PRF-6081 mineral-based oils.
• MRO Storage & Engine Layup: Essential corrosion-inhibiting fluid used during overhaul, shipping, and long-term storage of military aviation turbines.

• All in-stock orders are processed within 1–2 business days (excluding weekends and holidays) after receiving your order confirmation email.
• Orders with a lead time will ship according to the estimated shipping time shown on the product page.
• If we experience a high volume of orders or if an item is backordered, processing times may be slightly delayed. We will notify you promptly via email.

• Returns and damage claims must be made within a maximum of 3 business days after receiving the product, with prior authorization from Aircraft Shop Supply (Return Material Authorization - RMA). Returns without prior notice or written authorization will not be accepted. We strongly recommend inspecting the product upon delivery; many products require special storage conditions for which we are not responsible once they arrive to the client's facility. Please review the product's SDS for proper storage and handling.
• For products with 3 to 6 months of remaining shelf life, claims must be made within the next 2 business days after receipt.
• Returns are not accepted for products with less than 3 months of remaining shelf life.
• Returns are not accepted for products purchased during a low Shelf Life promotion, items sold with discounts, or special orders that must be placed directly with the factory.
• The customer is responsible for the return shipping cost, except in cases where the return is due to an error on the part of Aircraft Shop Supply.
• Refunds will only be issued after the product has been inspected and no damage is found.
• A 25% Restocking Fee will be charged for returns of products in good condition that are either no longer needed or were ordered incorrectly.
• A 35% Restocking Fee will be charged for returns of products with one year or less of remaining shelf life.
• No Restocking Fee will be charged if Aircraft Shop Supply is responsible for incorrectly shipping a product, or if the order is damaged upon leaving the warehouse.
• Hazardous Materials & Dangerous Goods: These items are sold as final and are not eligible for return approval.

At Aircraft Shop Supply, we are committed to shipping the highest quality and freshest product possible. To ensure efficient stock rotation and meet aviation industry standards, our inventory management is governed by the following policy:

1. Scope of Application
All Sales Channels: This policy applies to all orders processed by Aircraft Shop Supply, including but not limited to: website purchases, direct email orders, formal Purchase Orders (POs), phone orders, and contract agreements.

2. Inventory Management (FIFO)
All products with an expiration date are managed and shipped on a strict "First In – First Out" (FIFO) basis.

3. Minimum Shipping Margin
Standard Guarantee: We will not ship any products with fewer than 30 days of use remaining (days before expiration), unless previously coordinated and agreed upon with the customer.

No Automatic Guarantees: Outside of this 30-day minimum margin, Aircraft Shop Supply does not make any automatic guarantee as to the specific length of time remaining on any shelf-life item for standard orders.

4. Special Customer Requirements
We understand that certain projects, maintenance schedules, or regulatory standards require strict specifications. If your order has specific shelf-life requirements, please proceed as follows:

How to Request: If you require a specific Date of Manufacture (DOM), Date of Expiration (DOE), or a specific minimum shelf-life percentage (%), you must clearly state this requirement:

In the Comments/Notes section when placing an online order.

Explicitly written on your Purchase Order (PO) or quote request email for offline orders.

Validation Process: Once your requirement is received:

We will ship your order if the available stock matches your specifications.

If we do not have the exact batch, we will contact you prior to shipping with the shelf-life percentage (%) or dates we have available for your acceptance.

5. Limitation of Liability and Validity of Information
To ensure transparency and manage expectations, the following terms and conditions apply:

Time-Limited Validity: Any information provided by our team regarding the remaining shelf-life percentage (%) is valid only at the exact time the inquiry is made. Due to high inventory turnover, availability is subject to change without prior notice.

Informational Purposes Only: Shelf-life data provided by Aircraft Shop Supply is strictly for informational purposes and reflects the availability at the moment of inquiry. It does not constitute a batch reservation or a product warranty.

Supply Chain Liability Exclusion: Aircraft Shop Supply is not responsible for the time elapsed or any product expiration that occurs after the order has been prepared and packed. This includes, but is not limited to: the time between order placement, carrier transit times, intermediary storage, customs delays, and final delivery to the end user. It is the customer's responsibility to account for these logistical lead times within their planning.