Backup ring
No other part numbers with same form, fit, and function found.
A circular shaped item with an aperture manufactured to predetermined dimensions, constructed with a rectangular cross section that may be solid, with joint, or in a helical form that facilitates spiral wrap installation. It prevents seal extrusion under pressure and is designed to fit on the down-pressure side of a gland groove with a packing, preformed or o-ring.
NSN 5935-00-616-2809
NSN 7035-01-302-3914
NSN 5975-00-061-7035
NSN 5950-01-292-1879
NSN 6150-01-311-5617
NSN 6610-00-287-6884
NSN 5930-01-633-0843
NSN 5998-01-030-2802
NSN 5945-01-468-0723
NSN 5935-00-936-5518
NSN 5965-01-231-8772
NSN 6145-01-371-6250