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 6645-01-023-8020
NSN 5950-01-629-4167
NSN 5999-01-539-3954
NSN 5920-00-755-3235
NSN 6110-01-339-9977
NSN 5996-00-973-3601
NSN 5910-01-247-2133
NSN 6150-00-065-5262
NSN 5895-01-454-6980
NSN 5930-00-526-5317
NSN 6145-01-648-4219
NSN 5999-00-552-8110