Etalon micrometers have undergone several design changes without receiving new model numbers. This makes it hard to figure out what parts are needed. Old model Etalon micrometers had curved frames. The new models have angular frames. Since there's considerable confusion, it would be wise to send us a photo of the micrometer you have so that we can match up the right parts for you. 
It's safe to say that only parts for the new models are currently available, with those exceptions noted below.
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Dwg No. | Order No. |  | go to price list |
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18+19 | 017857 | spindle lock (for all micrometer sizes) |
31 | 026928 | measuring sleeve (barrel) 71.115899 |
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34 | 034883 | Plastic heat shield for 71.115889 (new style, shown above) |
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34 | 027368 | Plastic heat shield for 71.115899 (old style, shown above) |
34 | 034885 | Plastic front plate for 71.115899 (old model) |
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Note: the heat shields for these models are a single molded piece of plastic which snaps in place. The oldest models had separate shield plates for the front and back, which were held on with screws. Since the numbers 115899 and 115889 are visually similar, be extra careful when ordering. Other heat shields may be available. |
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