ACTUATOR (P/N sk421-121a) - New Surplus
P/N: sk421-121a
Category: Valves & Actuators
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 | 1 Available |
Product Description
The sk421-121a is an aircraft actuator that converts control inputs into precise linear or rotary motion for valve and mechanism positioning. This aviation-grade metal actuator interfaces with bleed-air valve systems and existing linkages throughout the airframe. Installation requires rigging per the aircraft maintenance manual and compatibility verification with your Illustrated Parts Catalog.
The actuator provides reliable positioning control in pneumatic and hydraulic systems, supporting safe operation of engine bleed-air management and related airframe functions.
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 ACTUATOR (P/N sk421-121a)?
The sk421-121a is an aircraft actuator that converts control inputs into precise linear or rotary motion for valve and mechanism positioning. This aviation-grade metal actuator interfaces with bleed-air valve systems and existing linkages throughout the airframe.
What hydraulic fluid type is the sk421-121a compatible with?
Hydraulic component compatibility depends on the aircraft system design. Common aviation hydraulic fluids include MIL-PRF-5606 (mineral-based), MIL-PRF-83282 (synthetic), and Skydrol (phosphate ester). Verify the ACTUATOR against your aircraft maintenance manual for fluid compatibility.
Does the sk421-121a come pressure-tested and certified?
Overhauled and repaired hydraulic components are pressure-tested per manufacturer specifications and include 8130-3 documentation. The ACTUATOR is available in: New Surplus. Contact us for test documentation on your selected condition.
What is the turnaround time for hydraulic component orders?
In-stock hydraulic components ship same business day before 3 PM EST. We provide 24/7 AOG support at (904) 998-9101 for urgent hydraulic system needs. RFQ submissions are typically quoted within 24 hours.
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