Ring, EndYear: 04/30/1983

Used in models:340, 445, 345D, 540A, 345C, 455D, 445A, 545D, 340A, 535, 420, 340B, 545A, 450, 455C, 250C, 445C, 540B, 335, 545C, 4610SU, 532, 515, 7610S, 2600R, 3910V, 4130NO, 7810O, 3230, 531, 3600, TB90, 7600C, 5610, 6600, 3430, 3930N, 6640, 4110V, 7810S, TB85, 4600SU, 7840O, 6810S, 3910R, 6600C, TB100, 4600O, 4830, 6640O, 3910N, 2910, 3930NO, 7010, TB110, TB80, 7610O, 3610, 2610, 2610V, 5610S, 3610NO, 6710, TS100, 3910H, 3610V, 231, 3600R, 6700, 530A, 4630NO, 5900, 7910, 333, 8240, 8210, 7700, 3900, 6610O, 3600N, 3930H, 230A, 7740O, 5640, 8010, 2600V, 6610S, 4610O, 5600, 4110O, 4610N, 3600NO, 2310, 5110, TB120, 6600O, 5030, TS115, 8340, 5030O, 233, 5700, 7710, 4110N, 4830O, 4610NO, 4830N, 7410, 4600NO, TS90, 4110NO, 4610V, 2600N, 3600V, 4630O, 2810