Adapter booster M149 (T46E5) contains the following changes made for ease of manufacturer: These consist of making the adapter in two pieces with smaller diameter flanges, the use of a plastic closing plug, and as an alternative, the ring adapter and adapter may be made in one piece. The M149 (T46E5) is identical to the T46E4 in all other respects.
No information about hazardous components.
TM 9-1325-200, Bombs and Bomb Components (1966)