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 5895-01-424-7799
NSN 6130-00-841-8917
NSN 5835-01-177-1092
NSN 6145-01-105-3556
NSN 6135-01-397-2170
NSN 6150-01-529-7908
NSN 6220-01-280-5353
NSN 6220-01-643-5601
NSN 6650-00-871-2983
NSN 5905-01-219-6478
NSN 5999-01-285-2952
NSN 5960-00-503-4880