SEAL (P/N 640087) - New Surplus

The 640087 is an elastomeric oil seal for the tachometer drive housing on Continental A-65 through O-300 engines. This seal prevents oil leakage at the accessory-case tach drive interface by maintaining a positive seal between rotating and stationary components. Installation occurs at the tach drive housing during engine maintenance or overhaul procedures.

Note: Part number 640087 has been superseded by 642714; verify the current part number in your engine's Illustrated Parts Catalog before ordering or installation. Follow Continental engine maintenance manual specifications for proper installation torque and sealing procedures.

What is the SEAL (P/N 640087)?

The 640087 is an elastomeric oil seal for the tachometer drive housing on Continental A-65 through O-300 engines. This seal prevents oil leakage at the accessory-case tach drive interface by maintaining a positive seal between rotating and stationary components.

What material is the 640087 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 640087 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 640087.

What is the shelf life of the 640087?

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 640087.