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 5998-01-216-2477
NSN 6135-01-309-8414
NSN 6650-00-466-1697
NSN 6645-00-596-5388
NSN 6145-01-290-4883
NSN 6610-01-032-5335
NSN 5895-01-116-4632
NSN 5905-01-014-6139
NSN 5895-01-513-8565
NSN 5960-01-347-0751
NSN 5960-01-539-1956
NSN 6620-01-391-6499