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 5960-01-419-5421
NSN 5930-00-788-4844
NSN 4140-01-082-8065
NSN 6610-00-239-8613
NSN 5905-01-045-6545
NSN 5930-01-182-4100
NSN 6645-00-470-5310
NSN 6650-01-262-5750
NSN 5965-01-502-8769
NSN 6135-01-255-9129
NSN 6620-01-234-1799
NSN 5935-01-351-6987