No other part numbers with same form, fit, and function found.
A spring steel ringlike item designed to be placed between a piston ring and the piston to maintain the correct piston ring pressure against the cylinder wall.
NSN 5835-00-440-9049
NSN 5985-00-260-2716
NSN 6145-00-241-1770
NSN 5915-00-439-0868
NSN 5975-01-254-6128
NSN 7035-01-512-1826
NSN 6135-01-285-8807
NSN 6145-01-368-9243
NSN 5996-01-056-9046
NSN 6610-01-659-3277
NSN 5855-01-461-8089
NSN 6620-00-064-3598