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 5999-01-462-2644
NSN 5998-01-317-0921
NSN 6135-00-321-6707
NSN 5999-01-029-9987
NSN 5998-01-297-3772
NSN 5925-01-499-9163
NSN 7035-01-459-8268
NSN 4140-00-679-9512
NSN 5998-01-297-8752
NSN 5990-01-485-0260
NSN 6110-00-723-6341
NSN 6645-00-825-5677