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 5975-01-454-3871
NSN 6130-01-413-3078
NSN 6685-00-312-8319
NSN 6650-01-559-3862
NSN 5945-01-009-7713
NSN 5855-01-114-3513
NSN 6220-01-444-3972
NSN 5855-01-577-5946
NSN 5835-01-200-7153
NSN 7035-01-491-1464
NSN 5905-00-110-5153
NSN 6135-00-422-3967