SPACER (P/N 21770-204) - As Removed

The 21770-204 is an aircraft spacer that maintains precise clearance between mating parts in airframe and system assemblies. This component aligns hardware and prevents side-loading during installation by setting the proper stack-up height between brackets, control linkages, and fastened joints. Commonly manufactured from aluminum or steel per NAS42 sleeve-spacer series standards, the spacer ensures bolt clamp-up remains square and prevents binding.

Install per your aircraft's maintenance manual, verifying dimensions in the Illustrated Parts Catalog before assembly.

What is the SPACER (P/N 21770-204)?

The 21770-204 is an aircraft spacer that maintains precise clearance between mating parts in airframe and system assemblies. This component aligns hardware and prevents side-loading during installation by setting the proper stack-up height between brackets, control linkages, and fastened joints.

Does the 21770-204 meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The SPACER 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 21770-204 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 21770-204.

Can I order the 21770-204 in custom quantities?

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