WASHER: SPRING (P/N sp56b) - New Surplus
P/N: sp56b
Category: Washers
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 | 300 Available |
Product Description
The sp56b is a helical spring lock washer designed to maintain clamp load in aircraft fastener assemblies under vibration. Manufactured from steel and conforming to NASM35338 (formerly MS35338) and ASME B18.21.1 standards, this washer installs under screw or nut heads in aircraft panels and equipment mounts. The helical design provides continuous spring tension that resists fastener loosening during flight operations and maintenance cycles.
Installation requires verification of torque values and washer size per the applicable aircraft maintenance manual during MRO procedures.
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 WASHER: SPRING (P/N sp56b)?
The sp56b is a helical spring lock washer designed to maintain clamp load in aircraft fastener assemblies under vibration. Manufactured from steel and conforming to NASM35338 (formerly MS35338) and ASME B18.
What conditions is the sp56b available in?
The sp56b is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
How do I get pricing for the sp56b?
The sp56b requires a custom quote. Submit a Request for Quote (RFQ) through our website or call our sales team at (904) 998-9101 for immediate pricing assistance.
Do you offer expedited shipping for the sp56b?
Yes, we offer same-day processing on in-stock items and provide 24/7 AOG (Aircraft on Ground) support for urgent needs. Standard, expedited, and overnight shipping options are available.