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 6650-01-411-0170
NSN 6130-01-007-9959
NSN 2925-01-580-1527
NSN 5990-00-153-0055
NSN 6240-01-522-9383
NSN 6610-00-421-9853
NSN 6685-01-421-7330
NSN 5920-01-469-2349
NSN 6645-01-187-6997
NSN 6105-00-689-7799
NSN 6220-01-421-4448
NSN 6650-00-724-8258