P/N: 27s5-1
Category: Washers
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| Condition | Price | Stock |
|---|---|---|
| New Surplus | $5.00 | 25 Available |
The 27S5-1 is a lock washer designed to distribute load and resist fastener loosening in aircraft structural joints. This hardened steel washer installs under a nut, maintaining clamp-up force through vibration and thermal cycling. Conforms to AN960 or NAS1149 specifications common in general and commercial aviation.
Installation follows FAA AC 43.13-1B guidance—verify size and specification in your aircraft Illustrated Parts Catalog before use. Torque per manufacturer recommendations for proper preload.
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.
The 27S5-1 is a lock washer designed to distribute load and resist fastener loosening in aircraft structural joints. This hardened steel washer installs under a nut, maintaining clamp-up force through vibration and thermal cycling.
The 27s5-1 is currently available in the following conditions: New Surplus. Each condition reflects the part's maintenance history and certification status per FAA standards.
The 27s5-1 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.
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.