This is a Sources Sought notice for market research purposes only, not a solicitation. The government intends to solicit and contract with only the approved source(s) for the NSN 5360-01-236-0285, a helical extension spring, due to a lack of complete technical data. The item has a First Article Test (FAT) requirement, and drawings are accessible via a provided cFolders link. Interested parties should complete and return the attached market survey to the Contract Specialist via email. No budget, submission timeline, or performance location are specified.