5303261132 is mostly called the old Westinghouse front load
The Frigidaire boot 5303261132 Q133321 is for newer 3 belt Westinghouse, White Westinghouse, Gibson, Kenmore, Wards, J C Penney and Frigidaire machines of the 1960's thru early/mid 1990's. It might fit the 1950's spacemates too.
Austinado16 up the thread mentions using the newer boot on the older machines RE :
""When I rebuilt my '53 LB-6 I used a grey boot off a later Westinghouse front loader. The only "mod" needed to use this boot, was that the inner lip had to turn inside out, and then be clamped to the tub's rim using a banding clamp." "
An actual 5303261132 Q133321 Boot one buys has new old stock can have the Westinghouse, Frigidarie, Sears, Monkey Wards on the box; or just the part number. One I got 2 years ago had the wrapper marked with every Electrolux brand name under their umbrella.
5303261132 is most often called the boot for older front load westinghouses by most folks, and they forget about the older boot.
5303261132 shows up on ebay usually several times per year; the black boot for the 1950's L units shows up maybe once a year.