LOCK WASHER (P/N 557316) - New Surplus
P/N: 557316
Category: Fasteners & Hardware
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 | 4 Available |
Product Description
The 557316 is a steel lock washer conforming to MS35338 specifications (formerly AN935). This washer maintains clamp load and prevents fastener loosening caused by vibration in aircraft structural assemblies. Installed under bolt heads or nuts on airframe mounts, it provides spring tension to resist vibration-induced rotation.
The washer's deformed teeth grip against mounting surfaces, creating friction that locks the fastener in place during flight operations. Select the correct size per the aircraft's Illustrated Parts Catalog and install per maintenance manual torque specifications.
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 LOCK WASHER (P/N 557316)?
The 557316 is a steel lock washer conforming to MS35338 specifications (formerly AN935). This washer maintains clamp load and prevents fastener loosening caused by vibration in aircraft structural assemblies.
Does the 557316 meet AN/MS/NAS aviation specifications?
Aircraft hardware is manufactured to military and aviation specifications. The LOCK WASHER conforms to its applicable AN (Air Force-Navy), MS (Military Standard), or NAS (National Aerospace Standard) specification. Contact us for specific specification details.
What material is the 557316 manufactured from?
Aviation hardware is available in various materials including cadmium-plated steel, stainless steel, aluminum alloy, and titanium depending on the application. Contact us for material certification and specifications for the 557316.
Can I order the 557316 in custom quantities?
Yes, we sell hardware in various quantities from single units to bulk lots. The LOCK WASHER is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.