This arm is part of the pair believed to be the original arms for the RX-2 Advanced Extra-Vehicular Suit constructed by Litton for NASA in 1964. The suit, as fitted with these arms, was the first of the RX-series of suits, and was identified as the RX-1. Due in part to the impressive tests of this suit, it was modified to become the RX-2, and these arms were replaced at that time.
The arms feature revised mobility joints resulting in increased flex-range for the wearer.
Donated to NASM by Muriel and Harry Kaplan in 2004.
This object is not on display at the National Air and Space Museum. It is either on loan or in storage.