OEM Bach 3 springs, FH200 Flugelhorn & others. Conn P/N 573A, D10mm x L38mm. These springs are used in the following repair kits: my ID# 16098, 16155, & 16216.
Fits:
FH200 Bach Flugelhorn
TR200 Bach Bb Trumpet
TR200S Bach Bb Trumpet
843 Bach Valve Trombone
FH200S Bach Flugelhorn
CR200 Bach Cornet
184 Bach Cornet
181 Bach Cornet
Mercedes II Bach Bb Trumpet
TR300H Bach Bb Trumpet
LTR100 Liberty Bb Trumpet
TR305 Bach Bb Trumpet
TR305SBP Bach Bb Trumpet
CR310 Bach Cornet
1530 Bundy Bb Trumpet
TR300HS Bach Bb Trumpet
TR300HP Bach Bb Trumpet
CR300HP Bach Cornet
CR300H Bach Cornet
CR310S Bach Cornet
CR300HS Bach Cornet
1531 Bundy Cornet
TR300H2S Bach Trumpet
TRSOL300H2 Bach Trumpet
TRSOL200 Bach Trumpet
TROM300H2 Bach Trumpet
TROM310 Bach Trumpet
TR300H2 Bach Trumpet