No other part numbers with same form, fit, and function found.
A metallic item for mounting upon a frame, manhole and completely closing the opening.
Classification: Cast articles nesoi of nonmalleable cast iron
NSN 6320-01-512-2031
NSN 6610-01-473-1843
NSN 5945-01-622-7286
NSN 5835-00-106-2120
NSN 5950-01-152-1271
NSN 6620-01-657-6296
NSN 5998-01-346-0468
NSN 4140-01-525-7692
NSN 6150-01-327-3199
NSN 6105-01-558-0905
NSN 5855-01-406-4821
NSN 6645-01-443-0269