Cross reference list for the oil seal for front wheel bearing hub, all MGA except Twin Cam and "Deluxe" cars. Also for MG TC, MG TD. MG TF, MG YB, MG ZA, MG ZB.

    Seal Dimensions:
Inside Diameter:  2.125 in (53.98 mm) -- 2-1/8" shaft size
Outside Diameter: 2.838 in (72.09 mm) -- (special) housing bore
Width:            0.312 in ( 7.95 mm) -- 5/16" seal thickess

    Original MGA part numbers:
BMC		130643
BMC/Leland	ACF4004

    Additional part numbers:
Moss Motors UK	ACF4004
Moss Motors US	120-600
ROVER		88G555
ROVER		ACF4004
ROVER		GHS104
ROVER		GHS211
ROVER		RTC3504
Victoria British  5-858

Chrysler	T3497

    Manufacturers:
CR		550111
National	1035
Payen		78042
Payen		C449
Payen		NA293
Weston		WR132

Here is another possibility. You might try a metric dimension shaft seal in size 54x72x8mm. The OD is almost 0.004-inch smaller, but with the rubber covered shell it may work.

Harwal		547208 ADL MBR (double lip Nitrile)