Alfa Laval 9630033040 is an OEM reference for a double R90 mechanical shaft seal listed for SSP SR and SRU4 pumps. The specification lists the SS/C + SS/C sealing-face combination and NBR/NBR elastomers. The associated R90 seal designation is 7400.104N/104N. The corresponding KE MOTION HYDRO product reference is NV-D SR.