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 5930-01-604-8952
NSN 6110-00-193-0030
NSN 6240-00-191-2855
NSN 5895-01-547-8963
NSN 5998-01-143-4028
NSN 5950-01-579-2848
NSN 4140-00-307-2732
NSN 5920-01-529-6525
NSN 6685-01-208-7536
NSN 6135-01-138-8157
NSN 5996-01-456-0488
NSN 6130-00-107-8544