Flamemaster CS3201 A2 Integral Fuel Tank & Cabin Sealant AMS-S-7124 Black (Formerly Mil-S-7124 and Mil-S-7502) 

NSN: 8030-00-286-2266

CS 3201 Class A was designed for sealing aircraft against the passage of air, liquids, and vapors. If using CS 3201 Class A in a fuel or oil tank, a protective top coating of AMS-S-4383, such as CS 3600, is necessary to ensure maximum service life. This high-performance sealant is engineered to provide excellent adhesion, flexibility, and resistance to common aircraft fluids and environmental conditions. Its Class A designation typically indicates a lower viscosity or more flowable consistency compared to other classes, making it ideal for applications requiring good wet-out and penetration into tight gaps and seams. This compound helps maintain the structural integrity and operational safety of aircraft by providing a dependable barrier against leaks and corrosion in challenging areas.

Key Features for Aviation:

• High-performance sealant specifically designed for aircraft applications.
  
• Lower viscosity (Class A) allows for better flow and penetration into tight spaces.
  
• Provides excellent adhesion to common aircraft substrates like aluminum and composites.
  
• Offers good flexibility to accommodate movement and vibration in aircraft structures.
  
• Resistant to many common aircraft fluids, including fuels and lubricants (always verify specific resistance).
  
• Ideal for sealing intricate joints, seams, and areas difficult to access with higher viscosity sealants.
  Helps prevent leaks and corrosion in critical aircraft areas.

Typical Aviation Applications:

• Sealing complex joints and seams in airframe structures.
  
• Sealing around closely spaced fasteners and rivets.
  
• Sealing faying surfaces with tight tolerances to prevent corrosion.
  
• Gap filling and sealing in intricate structural joints.
  
• Sealing components in non-fuel tank areas where good flow is needed.
  
• Use in the manufacturing and maintenance of commercial and general aviation aircraft.

• 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.