For bb clarinet with ring, nickel plated
No other part numbers with same form, fit, and function found.
NSN 5920-00-602-7626
NSN 5996-01-444-3915
NSN 5925-00-977-5843
NSN 5990-01-374-3877
NSN 5835-01-442-6482
NSN 5905-00-735-4001
NSN 5998-00-479-9817
NSN 6645-00-359-5463
NSN 6610-00-400-1252
NSN 6150-00-988-3801
NSN 5998-00-374-2088
NSN 6685-01-549-1133