Nut, Hex, 5/8"-18, Start Year: 01/01/1979

Used in models:340, 445, 3500, 550, 540A, 445A, 555, 655A, 3400, 340A, 535, 420, 340B, 555B, 545A, 450, 540B, 335, 555A, 532, 515, 7610S, 2600R, 5340, 7810O, 3150, 531, 2100, 3600, 3100, 7600C, 5610, 6600, 7810S, 2300, 2310, 4600SU, 3000-SERIES, 6810S, 3110, 6600C, 4600O, 7010, 3055, 4200, 7610O, 3610, 7000-SERIES, 2120, 3300, 2610, 5610S, 3610NO, 6710, 6410, 3600R, 6700, 4000-SERIES, 3330, 530A, 5900, 7910, 8210, 7700, 3900, 6610O, 5200, 3600N, 230A, 8010, 5000-SERIES, 2600V, 6610S, 5600, 2110, 3600NO, 5110, 6600O, 3310, 233, 5700, 7710, 7200, 5100, 7410, 4600NO, 2600N, 3120, 3600V, 7100, 2000-SERIES, 2150