LOCK WASHER (P/N b332-43) - New Surplus

The b332-43 is a metal lock washer designed for Robinson Helicopter aircraft fastener assemblies. This washer resists vibration-induced loosening of bolts and screws in critical structural and mechanical applications. Installed beneath bolt heads or screw heads as part of the fastener stack, it prevents rotation and maintains clamp load during flight operations.

Commonly used in Robinson R22 assemblies where self-locking nuts are not applicable. Installation follows FAA AC 43.13-1B guidance, typically placed between the fastener head and structural component to distribute load and resist backing-off from vibration.

What is the LOCK WASHER (P/N b332-43)?

The b332-43 is a metal lock washer designed for Robinson Helicopter aircraft fastener assemblies. This washer resists vibration-induced loosening of bolts and screws in critical structural and mechanical applications.

Does the b332-43 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 b332-43 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 b332-43.

Can I order the b332-43 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.