O RING, BACKUP (P/N s0311-113) - New Surplus
P/N: s0311-113
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 | 15 Available |
Product Description
The s0311-113 is an elastomeric backup ring for O-ring sealing assemblies in aircraft hydraulic systems. This ring prevents O-ring extrusion under pressure by supporting the elastomer on the low-pressure side of hydraulic actuator glands. Conforming to MS28774/MS28782 backup ring standards and AS568 O-ring sizing conventions, it works in tandem with primary seals to maintain system integrity.
Installation and inspection follow the component maintenance manual and applicable sealing specifications for the actuator assembly.
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 s0311-113)?
The s0311-113 is an elastomeric backup ring for O-ring sealing assemblies in aircraft hydraulic systems. This ring prevents O-ring extrusion under pressure by supporting the elastomer on the low-pressure side of hydraulic actuator glands.
What material is the s0311-113 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 s0311-113 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 s0311-113.
What is the shelf life of the s0311-113?
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 s0311-113.
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