(904) 998-9101
sales@aircraftpartsstore.com
Aircraft Parts Store
SEAL - P/N 21477

SEAL (P/N 21477) - New Surplus, As Removed

P/N: 21477

Category: Seals

Contact for quote
In Stock (33 available)
Submit RFQ Call for Pricing

This product requires a custom quote. Please contact our sales team for pricing information or submit an RFQ (Request for Quote).

Available Inventory

Condition Stock
New Surplus 26 Available
As Removed 7 Available

Product Description

The 21477 is a synthetic rubber cylinder base seal for Continental piston engines. This compliant gasket maintains the seal between the cylinder base and crankcase at the joint interface. Installed at the base flange during cylinder installation on Continental A-65 through O-200 engines.

Replace the seal whenever the cylinder is removed from the engine. Verify correct part number per AC 43.13-1B before installation to ensure proper fit and sealing performance.

Please note: Product descriptions are provided for informational purposes. Always refer to your aircraft's Illustrated Parts Catalog (IPC) to verify part compatibility and specifications.

Frequently Asked Questions

What is the SEAL (P/N 21477)?

The 21477 is a synthetic rubber cylinder base seal for Continental piston engines. This compliant gasket maintains the seal between the cylinder base and crankcase at the joint interface.

What material is the 21477 made from?

Aircraft seals and O-rings are manufactured from various elastomers including nitrile (Buna-N), fluorocarbon (Viton), silicone, and PTFE depending on the application. The SEAL meets aviation specifications for its intended use. Contact us for specific material data.

Can I order the 21477 in bulk quantities?

Yes, we stock seals and gaskets in quantity and offer bulk pricing. Submit a Request for Quote (RFQ) for volume orders, or call (904) 998-9101 for immediate quantity availability on the 21477.

What is the shelf life of the 21477?

Elastomeric seals have manufacturer-specified shelf lives that vary by material and storage conditions. We follow industry standards for cure date tracking and proper climate-controlled storage. Contact us for shelf life details on the 21477.

Related Seals

Browse More Seals