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 6620-01-434-6538
NSN 5998-01-022-1750
NSN 6320-01-549-3153
NSN 6685-01-455-8172
NSN 6650-00-197-7563
NSN 6130-01-144-9495
NSN 6240-01-139-3377
NSN 7035-01-476-7787
NSN 5920-00-203-5938
NSN 5925-01-431-8088
NSN 5930-01-624-8989
NSN 6320-01-554-0901