RETAINING RING (P/N a21y) - New Surplus

Part a21y is a spring steel retaining ring designed to secure bearings, sleeves, and other components in grooves on aircraft shafts and bores. This ring conforms to MS16624/MS16625 series specifications common in aviation assemblies. Installation requires positioning the ring in the specified groove using appropriate retaining ring pliers, then verifying dimensions against the aircraft maintenance manual or Illustrated Parts Catalog.

The spring steel construction provides reliable retention under vibration and operational loads typical in general aviation powerplant and accessory installations.

What is the RETAINING RING (P/N a21y)?

Part a21y is a spring steel retaining ring designed to secure bearings, sleeves, and other components in grooves on aircraft shafts and bores. This ring conforms to MS16624/MS16625 series specifications common in aviation assemblies.

Does the a21y meet AN/MS/NAS aviation specifications?

Aircraft hardware is manufactured to military and aviation specifications. The RETAINING RING 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 a21y 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 a21y.

Can I order the a21y in custom quantities?

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