PACKING STR THD TUBE FTG (P/N 557-s-6) - New Surplus

The 557-s-6 is an elastomeric packing designed for straight-thread tube fittings, sealing at the boss connection point. This seal prevents leakage in aircraft hydraulic and pneumatic line systems where tube-to-port manifold connections require reliable pressure integrity. Conforming to MS/AS fitting standards, the packing installs within the gland cavity using manufacturer-specified dimensions and torque values.

Proper installation requires lubrication per the fitting standard and adherence to aircraft maintenance manual procedures to ensure optimal sealing performance under system pressure.

What is the PACKING STR THD TUBE FTG (P/N 557-s-6)?

The 557-s-6 is an elastomeric packing designed for straight-thread tube fittings, sealing at the boss connection point. This seal prevents leakage in aircraft hydraulic and pneumatic line systems where tube-to-port manifold connections require reliable pressure integrity.

What material is the 557-s-6 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 PACKING STR THD TUBE FTG meets aviation specifications for its intended use. Contact us for specific material data.

Can I order the 557-s-6 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 557-s-6.

What is the shelf life of the 557-s-6?

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 557-s-6.