PACKING (P/N M25988/4-904) - New Surplus
P/N: M25988/4-904
Category: Seals
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 | 8 Available |
Product Description
The M25988/4-904 is a fluorosilicone (FVMQ) O-ring for aircraft fuel system sealing. This packing meets MIL-DTL-25988/4 specifications (superseded by AMS-R-25988) and follows AS568 dash-904 sizing standards. It provides static sealing in fuel system components operating in cold-service conditions, resisting fuel, oils, and solvents.
Installation requires compatible lubricant application and torque per the aircraft maintenance manual. Verify exact dimensions through the Illustrated Parts Catalog before installation to ensure proper fit in fuel system interfaces.
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 PACKING (P/N M25988/4-904)?
The M25988/4-904 is a fluorosilicone (FVMQ) O-ring for aircraft fuel system sealing. This packing meets MIL-DTL-25988/4 specifications (superseded by AMS-R-25988) and follows AS568 dash-904 sizing standards.
What material is the M25988/4-904 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 meets aviation specifications for its intended use. Contact us for specific material data.
Can I order the M25988/4-904 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 M25988/4-904.
What is the shelf life of the M25988/4-904?
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 M25988/4-904.