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 5990-01-651-6364
NSN 6620-01-026-0346
NSN 5965-00-177-2932
NSN 5975-01-652-3792
NSN 5920-01-466-9498
NSN 5965-01-107-8549
NSN 5915-01-633-9845
NSN 5895-01-286-2205
NSN 2925-01-616-3037
NSN 4140-01-015-5137
NSN 5905-00-908-1049
NSN 5920-01-192-3798