Adapter booster T46E3 is identical to adapter booster T46E4 except that it has no locking pin hole in the adapter assembly. This locking pin hole serves to lock adapter booster T46E4 in place when assembled in the bomb. Adapter booster T46E3 also contains a tag marked DO NOT USE WITH LONG DELAY FUZES.
No information about functioning.
Tetryl booster.
TM 9-1325-200, Bombs and Bomb Components (1966)