The National Institute of Standards and Technology (NIST) is conducting market research to identify sources for six stainless steel load washers, each with a rated compressive capacity of at least 225 kip and specific dimensional and environmental requirements. These washers are needed for structural testing of full-scale precast concrete beam-column connection assemblies under simulated earthquake forces, building on prior disproportionate collapse research. Responses must be submitted via email as soon as possible, preferably before the closing date and time, and should include company details, product specifications, and business size status. No budget amount or performance location is specified in this notice. This is a sources sought notice for information gathering only, not a solicitation for bids.