High Temperature Ceramic Matrix Composite Accordion Spring

NASA/NSSC has published a Special Notice for High Temperature Ceramic Matrix Composite Accordion Springs, designated as a total small business set-aside opportunity. The agency requires advanced spring components capable of maintaining structural integrity and seal engagement at extreme temperatures up to 2500°F for future vehicle systems. This procurement falls under NAICS code 334519 (Other Measuring and Controlling Device Manufacturing) and is classified as laboratory equipment and supplies. The Notice was posted on August 28, 2025, with responses due by September 1, 2025. NASA currently intends this as a sole source procurement to Physical Sciences Inc., having determined they are the sole provider of ceramic matrix composite springs.

The primary objective is to develop multiple prototype spring configurations using different flexible CMC materials, including CVD Coated Fabric, SiC Inner-layer, UHT-tape surfaces, and PSC-10 Flex specimens. Each prototype must meet precise geometric specifications of 0.45" width, 0.83" height, and 0.03" flexure thickness, designed to compress approximately 20% of their nominal height. Interested organizations may submit written capabilities and qualifications by 4:00 p.m. Central Standard Time on September 1, 2025, for evaluation to determine whether the procurement will be conducted competitively. The government retains sole discretion over the final competitive approach, and oral communications are not acceptable. These prototypes will support NASA's development of advanced high-temperature sealing technologies critical for future aerospace vehicle systems operating in extreme temperature environments.