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 5930-01-409-1912
NSN 5975-00-480-0114
NSN 7035-01-368-4801
NSN 6685-01-225-6459
NSN 6320-01-082-2970
NSN 2925-01-155-5444
NSN 6610-01-013-8922
NSN 5996-01-500-9861
NSN 6650-01-218-4742
NSN 5855-00-832-9341
NSN 5998-01-494-9375
NSN 6130-01-463-2874