Pilots HQ responded promptly to my order. They were delivered on time and pricing was reasonable. I would order from them again. Top notch company, very professional.
Love my new hat. Great quality and design. Fast delivery. Thanks.
Proponent
(Backordered) Normally Available within 10–12 Days.
SKU:M25988-1-212
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The M25988/1-212 Aircraft O-Ring is a premium fluorosilicone seal designed for use in critical aerospace applications. Manufactured to MIL-DTL-25988 military specifications, this O-ring provides exceptional resistance to extreme temperatures, fuels, oils, and aggressive chemicals. Ideal for demanding environments, it ensures long-lasting sealing performance in aircraft fuel and hydraulic systems.
The M25988/1-212 Aircraft Packing / O-Ring is part of the M25988 series, known for its outstanding performance in extreme conditions. This O-ring is made from fluorosilicone, offering exceptional resistance to fuel, oils, hydraulic fluids, and a wide range of chemicals. Its broad operating temperature range from -80°F to 400°F ensures that the M25988/1-212 O-ring performs effectively in both cold and hot environments, making it an ideal choice for aircraft operating in extreme conditions. Meeting stringent MIL-DTL-25988 standards, this O-ring is trusted in critical sealing applications such as aircraft fuel systems, hydraulic systems, and oil/lubricant systems. Whether for new installations or maintenance, the M25988/1-212 O-ring delivers reliable, long-lasting performance in high-demand aerospace environments.

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Pilots HQ responded promptly to my order. They were delivered on time and pricing was reasonable. I would order from them again. Top notch company, very professional.
Love my new hat. Great quality and design. Fast delivery. Thanks.