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 6135-00-299-6918
NSN 6110-00-631-3067
NSN 6110-01-134-1685
NSN 6610-01-108-8914
NSN 5965-01-530-2673
NSN 6220-01-126-4839
NSN 5950-01-411-6124
NSN 5998-00-141-0399
NSN 5990-01-510-4699
NSN 6150-01-029-2146
NSN 6645-01-344-4184
NSN 5895-01-089-8171