The pin with OEM no. BAA040016 is a genuine DeWalt/ Black & Decker part for the following models:
BOSTITCH DS-3219-E CARTON SEALER (TYPE REV A)
BOSTITCH DS-3519-E CARTON SEALER (TYPE REV A)
BOSTITCH DS-3522-E CARTON SEALER (TYPE REV A)
BOSTITCH DS-SW19-E CARTON SEALER (TYPE REV A)
BOSTITCH DS-SW22-E CARTON SEALER (TYPE REV A)
BOSTITCH F84-138 STAPLER (TYPE REV 0)
BOSTITCH FS32C CARTON SEALER (TYPE REV A)
BOSTITCH FS35A CARTON SEALER (TYPE REV A)
BOSTITCH FSSW CARTON SEALER (TYPE REV A)
BOSTITCH FSSWC CARTON SEALER (TYPE REV 0)
BOSTITCH MS-3219-E CARTON SEALER (TYPE REV A)
BOSTITCH MS-3519-E CARTON SEALER (TYPE REV A)
BOSTITCH MS-3522-E CARTON SEALER (TYPE REV A)
BOSTITCH MS-SW19-E CARTON SEALER (TYPE REV A)
BOSTITCH MS-SW22-E CARTON SEALER (TYPE REV A)