Material: steel music wire
No other part numbers with same form, fit, and function found.
A close-coiled helical extension spring, with ends fastened together to form a circle, designed to impose compression stresses toward the center of the circle thus formed when uniformly expanded.
NSN 5855-01-020-7982
NSN 4140-00-468-1117
NSN 5960-01-116-5341
NSN 6320-01-212-8749
NSN 5915-00-391-5735
NSN 6685-00-939-8353
NSN 7035-00-173-2281
NSN 5895-01-174-4196
NSN 2925-01-629-9416
NSN 6110-01-289-8981
NSN 5945-01-516-5525
NSN 6620-01-640-6761