O RING, BACKUP (P/N s0311-213) - New Surplus
P/N: s0311-213
Category: O-Rings
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 | 44 Available |
Product Description
The s0311-213 is a backup ring for aircraft hydraulic sealing systems. This elastomeric seal supports the primary O-ring and prevents extrusion under pressure in hydraulic glands. Designed to pair with AS568 dash-size O-rings in aerospace applications, the backup ring installs on the low-pressure side of hydraulic actuators and similar components.
Catalogued by Twin Commander for compatibility with their aircraft systems. Verify the part number against your Illustrated Parts Catalog or Component Maintenance Manual before installation to ensure proper sizing and gland configuration.
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 O RING, BACKUP (P/N s0311-213)?
The s0311-213 is a backup ring for aircraft hydraulic sealing systems. This elastomeric seal supports the primary O-ring and prevents extrusion under pressure in hydraulic glands.
What material is the s0311-213 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 O RING, BACKUP meets aviation specifications for its intended use. Contact us for specific material data.
Can I order the s0311-213 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 s0311-213.
What is the shelf life of the s0311-213?
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 s0311-213.
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