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 5990-01-525-2250
NSN 7035-01-369-1445
NSN 6220-00-925-2233
NSN 5950-00-481-1171
NSN 6110-01-237-5938
NSN 5930-01-279-1082
NSN 5985-00-107-0574
NSN 6620-01-255-6374
NSN 5905-01-059-0166
NSN 5960-00-872-9264
NSN 5895-00-965-8983
NSN 6150-01-519-7587