NBK Coupling

3S
4S
5S
6S
6SB
7S
8S
9S

MDW-19C
MDW-25C
MDW-32C
MDW-40C
MDW-50C
MDW-63C

MHW-32C
MHW-40C
MHW-50C
MHW-63C
MHS-32C
MHS-40C
MHS-50C
MHS-63C

MTD-20
MTD-25
MTD-32

MSX-16
MSX-19
MSX-24
MSX-29
MXS-34
MSX-16C
MSC-19C
MSC-24C
MSC-29C
MSX-34C

MST-8
MST-12
MST-15
MST-20
MST-25
MST-32
MST-40
MST-50
MST-63
MST-12C
MST-16C
MST20C
MST25C
MST-32C
MST-40C
MST-50C
MST-63C
MST-32K
MST-40K
MST-50K
MST-63K

MWS-8
MWS-12
MWS-16
MWS-20
MWS-25
MWS-32
MWS-12C
MWS-16C
MWS-20C
MWS-25C
MWS-32C

MFB-12
MFB-16
MFB-20
MFB-25
MFB-32
MFBS-12 16 20 25 32 
MFB-12C 16C 20C 25C 32C 12C 16C 20C 25C 32C

MKM
MOL
MOS
MJT
MCT
MSF
MRG
MLR
LC