Original BMC part number 2A7213, Bearing for bevel pinion - front (outer)
Tapered roller bearing Cup and Cone Set - 1 x 2.5 x 0.8125 inch
15100/15250 (ISO standard)

Bearing,differential carrier, MGA all models
2A7213           BMC, British Leyland, Rover
2K7481, 100478,  BMC alternate numbers
100478Z, X100478 BMC alternate numbers
A47213, G451,    BMC alternate numbers
BTB9003          BMC alternate numbers
AAA985A          Brown & Gammons
2A7213           Engel Imports
2A7213           MGOC Spares
2A7213           Moss UK
125-805          Moss US
5-794            Victoria British

MANUFACTURER     PART NUMBER
BOWER   15100S+15250X
CLARK   3486042, T4586 
FAG     K15100S+K15250X (inner+outer)
NTN     15100S +15250X (inner +outer)
R&M     2LJ1G w/c
RHP     15100S+15250X
RIV     11-30-3422 
SKF     CK15100S+K15250X, K15100S+K15250X
TIMKEN  15100S +15250X
UPC:    053893185361 (Timken)

Applications:
MG, MGA, TD, TF, all
MG, MGB, 1962-1967 w/Banjo Type Axle
Austin Healey 100, 100-6, 3000 BN1-BN4 w/Early Spiral Bevel Diff.;
AH Sprite & MG Midget (differential housing "C")
Morris Minor from (c)228267 to (c)990289