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 6220-00-135-0139
NSN 5999-01-415-9711
NSN 4140-01-642-5769
NSN 6620-01-431-9176
NSN 6240-01-179-4547
NSN 5930-01-421-9811
NSN 5945-00-541-7833
NSN 5920-00-318-7150
NSN 6130-00-561-6502
NSN 5945-01-394-8426
NSN 5905-01-166-3920
NSN 6145-01-020-8428