WASHER, CUP (P/N 27342) - New Surplus

Part 27342 is a cup washer designed to seat countersunk and oval-head fasteners on aircraft airframe panels. This finishing washer spreads clamping loads across parent material, reducing fretting and protecting panel surfaces during fastening operations. Identified for Challenger 600/601 series aircraft, the washer provides consistent seating under the screw head while maintaining aerodynamic contour.

Installation follows aircraft maintenance procedures per the applicable Illustrated Parts Catalog. Material and finish specifications ensure compatibility with airframe fastening systems.

What is the WASHER, CUP (P/N 27342)?

Part 27342 is a cup washer designed to seat countersunk and oval-head fasteners on aircraft airframe panels. This finishing washer spreads clamping loads across parent material, reducing fretting and protecting panel surfaces during fastening operations.

Does the 27342 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The WASHER, CUP 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 27342 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 27342.

Can I order the 27342 in custom quantities?

Yes, we sell hardware in various quantities from single units to bulk lots. The WASHER, CUP is available in: New Surplus. Submit an RFQ for volume pricing or call (904) 998-9101 for quantity availability.