The Fuel Shutoff Valve has one part number for the assembly, however there are several different dash numbers.
0411803-2 (150 )
0411803-5 (150 - 150G ) *When exhausted use -6
0411803-6 (150H - '72L)
0411803-8 ('73L - '75M)
The '76 M has a different part number.
9851070-2 ('76M)
The 152 has a completely different valve.