SHIM (P/N b4940-1) - New Surplus

The b4940-1 is an airframe shim used to set precise spacing and alignment between mating components during aircraft assembly and maintenance. This Cessna-catalogued part adjusts control linkage positioning in airframe assemblies to meet design tolerances. Typically fabricated from aluminum or steel, the shim installs per the applicable aircraft maintenance manual.

Verify the part number against your Illustrated Parts Catalog before installation to ensure correct thickness and application.

What is the SHIM (P/N b4940-1)?

The b4940-1 is an airframe shim used to set precise spacing and alignment between mating components during aircraft assembly and maintenance. This Cessna-catalogued part adjusts control linkage positioning in airframe assemblies to meet design tolerances.

Does the b4940-1 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SHIM 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 b4940-1 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 b4940-1.

Can I order the b4940-1 in custom quantities?

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