Imperial Spring Washer I.D: 3/4" (Pack 10) - 353440X1 Models 135, 148, 165, 168, 175, 178, 185, 188, 230, 240, 243, 250, 253, 263, 265, 275, 290, 298, 342, 350, 355, 360, 362, 365, 372, 375, 382, 390, 390T, 396, 398, 399, 4215, 4220, 4225, 4235, 4245, 4255, 4260, 4265, 4270, 4315, 4325, 4335, 4345, 4355, 4360, 4365, 4370, 550, 565, 575, 5830, 590, 6030, 675, 698, 698T, 699, 415, 435, 440, 425