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 6150-00-825-3770
NSN 6150-01-609-8471
NSN 6150-00-725-1189
NSN 6650-00-404-6473
NSN 6685-00-044-6743
NSN 5960-01-457-7432
NSN 7035-00-631-3782
NSN 5996-00-292-5394
NSN 5998-01-406-3846
NSN 6610-00-536-4977
NSN 5996-00-613-1761
NSN 6320-01-216-1678