PART NO.  SPL.PAGE  DESCRIPTION                                                                   
8G555     15.H.2    Seal -oil -(rear hub, rear axle, 1500)
8G555     16.H.4    Seal -oil -(rear hub, rear axle, 1600 and 1600-MK-II)
8G555     16.H.7    Seal -oil (2) -(hub, rear axle, ARDB model 1600 and 1600-MK-II) -Com.(C)91240
8G555     TC.H.2    Seal -oil (2) -(hub, rear axle, Twin Cam)

For MGA (and early MGB) the BMC part number is 8G555
1-15/16" ID x 2-3/4" OD x 5/16" Wide

For alternate part numbers, cross reference part numbers, see Rear Axle tech RA-112A

For Speedi-Sleeve part number and installation instructions, see Rear Axle tech RA-101