Patent — available for licensing
Threaded Pin-Lock Retaining Ring
A NASA invention available to explore as a licensing opportunity.
About this technology
Overview
Innovators at NASA Johnson Space Center have developed a locking threaded retaining ring that comprises a novel pin-lock mechanism allowing granular preload adjustment with no interference to desired torque values. The pin-lock mechanism may be adapted to other COTS threaded fasteners, thanks to a novel pinlock mechanism method configured for different applications. NASA’s Threaded Pin-Lock Retaining Ring System was originally developed for applications aboard the Lunar Terrain Vehicle Ground Test Unit, or LTV-GTU (shown above), as a need existed to better withstand the demands of space travel, namely vibrational resistance. A more compact fastener solution is presented that is lighter, allows more precise control for the attachment loading force, and can be redundantly locked in place by both the thread design and mechanical pin(s) to prevent loosening. This technology may have numerous applications in those that require axial preload. The Threaded Pin-Lock Retaining Ring has a technology readiness level (TRL) 6 (System/sub-system model or prototype demonstration in an operational environment), and is now available for patent licensing. Please note that NASA does not manufacture products itself for commercial sale.