An item designed to be mounted around and secured to the main tube and extension tube(s) of a borescope to center and balance it in a cannon bore.
NSN 5855-01-041-3432
NSN 5990-01-182-5913
NSN 6110-00-503-6643
NSN 7035-01-334-5855
NSN 5999-00-753-7450
NSN 6320-01-290-5271
NSN 5998-01-076-3531
NSN 6130-01-592-6847
NSN 6685-01-502-4273
NSN 6135-01-116-3385
NSN 5990-00-210-2953
NSN 6110-01-246-5391