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 5996-01-471-3447
NSN 6105-01-043-6768
NSN 5910-01-522-4133
NSN 5835-01-263-1293
NSN 6620-01-101-4408
NSN 6650-01-124-4314
NSN 6150-01-273-6028
NSN 6320-01-449-1014
NSN 5905-01-229-1704
NSN 6685-01-088-0546
NSN 6145-01-165-4386
NSN 6645-00-033-8066