No other part numbers with same form, fit, and function found.
A metallic item which mounts upon or in a manhole and will accommodate a cover, manhole.
NSN 5975-01-581-0494
NSN 5975-01-451-4415
NSN 5895-01-559-0281
NSN 5895-01-481-3015
NSN 5945-00-452-0055
NSN 5905-01-599-6872
NSN 6650-01-047-9642
NSN 5996-01-162-3312
NSN 5905-00-225-2198
NSN 5855-00-361-0167
NSN 6645-01-180-6219
NSN 5998-01-609-6038