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 5999-01-088-6409
NSN 5925-01-374-6366
NSN 6105-01-141-7727
NSN 4140-00-934-7937
NSN 6110-00-099-7113
NSN 5985-00-907-1433
NSN 5925-00-986-8980
NSN 5855-01-519-1226
NSN 4140-01-361-2292
NSN 6610-01-596-3254
NSN 5920-00-216-8665
NSN 5975-00-293-3995