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Mitutoyo dial indicator and Digimatic indicator
parts lists and available
spare parts

 

Mitutoyo does not sell parts directly to end users. It will be necessary to place your order through a dealer such as Long Island Indicator Service.

While we stock all the items commonly used for repairs we can't possibly list all of them here. However, a couple of items are on the most frequently requested list. See if what you're looking for is here. Although some parts are user replaceable, most parts will require special tools as well as experience in repairs.

Be advised that we can not offer refunds for parts you may have ordered in error.

 

Be aware of model numbers!

As Mitutoyo gages, calipers and micrometers evolve, the manufacturer adds new suffixes such as -30 or -50. This little detail must not be overlooked when ordering parts. The model number is always printed somewhere on Mitutoyo gages, if not on the dial. The most recent models of dial indicators will have the letter S attached to the number.

  • -10 models have jeweled bearings. This does not affect any other parts when ordering.
  • -60 models are waterproof. Some parts are likely to be different from the standard models.
  • indicator model numbers ending in SSN are designed for Sunnen bore gages (they have a custom stem diameter). Parts will be the same as the models ending in plain S.
  • Most digimatic indicators have the letter B attached to their model number, such as 543-262B. This means the indicator has a flat back rather than a lug back.

     

Mitutoyo dial thickness gage

The new style lifting levers have a plastic mount which breaks pretty easily. Obviously no one bothered to field test these new models, or they'd have noticed. The mount isn't available separately, so you'll have to buy the new style lifting lever, which is easily installed. The old style lifting levers were all metal, but they won't fit on the new gages (with some exceptions such as model 7328S). When looking for parts, pay particular attention to the letters F or S which may be part of the model number. Also, refer to the photo at the bottom of this page.

  • 7300S new style lifting lever 21AZB149 ... see Price list
  • 7301 new style lifting lever 21AZB149 ... see Price list
  • 7304 lifting lever (old models) 903425 ... see Price list
  • 7304 screw for lifting lever 101182 ... see Price list
  • 7304S lifting lever 21AZB150 ... see Price list
  • 7305 lifting lever 21AZB150 ... see Price list
  • 7322S new style lifting lever 21AZB151 ... see Price list
  • 7326 lifting lever (old models) 900525 ... see Price list
  • 7326 screw for lifting lever 101182 ... see Price list
  • 7326S new style lifting lever 21AZB149 ... see Price list
  • 7328S lifting lever for digital and dial (inch only) thickness gage 21AZB149 ... see Price list
  • 7328S mounting screw for lifting lever 101182 ... see Price list
  • more parts listed below

Tolerancehands

A pair of tolerance hands will clip on to any Group 2 Mitutoyo indicator whose model number ends in "S". Part number 21AAB155 can be ordered on page 187

 

 

How to place an order for Mitutoyo spare parts: Take note of the part numbers and quantities you need and proceed to page 187 for prices and ordering. If you are uncertain about identifying the parts, we suggest you check the Mitutoyo parts list first.

Model

Order No.

all models

dial indicator contact points (ball, flat, ruby and other types)

page 133

backs for all indicators (lug back, flat and other types)

page 219

1166
1167
1168

plastic bezel and crystal (new style)

21CAA149

[$]

1410
1411

crystal (will require a crystal press for insertion)

see page 233

1410F
1411F

plastic bezel and crystal

discontinued

plastic bezel clamp

193592

[$]

bezel clamp screw

193690

[$]

1507F

plastic bezel and crystal

discontinued

1802S-10
1
803S-10

plastic bezel and crystal assembly

21AZB353

[$]

2046F

plastic bezel and crystal

192683

[$]

2046S

plastic bezel and crystal (new style)

21AZB161

[$]

2046-60

bezel and crystal (water-proof style)

901460

[$]

2048-10

crystal (may require crystal press for insertion)

101032

[$]

2048-11

crystal (may require crystal press for insertion)

101032

[$]

2050S

plastic bezel and crystal (new style)

21AZB161

[$]

2412-08

crystal (may require crystal press for insertion)

101032

[$]

2414

crystal (may require crystal press for insertion)

101032

[$]

2414F

plastic bezel and crystal

192683

[$]

2416

crystal (may require crystal press for insertion)

101032

[$]

bezel with crystal installed (discontinued)

screw for back

112108

[$]

spindle stop screw (end screw)

192753

[$]

lifting lever with end screw (lifting screw)

903425

[$]

2416F

plastic bezel and crystal

192683

[$]

o-ring for plastic bezel

192725

[$]

bezel lock screw

101214

[$]

bezel lock (disc shaped)

21BAA083

[$]

spindle stop screw (lifting screw)

192753

[$]

lifting lever with end screw (lifting screw)

903425

[$]

mounting screw for lifting lever

101182

[$]

lug back

101306

[$]

screw for back cover or lug back

112108

[$]

2416S
2416S-06
2416S-10

plastic bezel and crystal (new style)

21AZB161

[$]

o-ring for plastic bezel

192725

[$]

spindle stop screw (suitable for use with lifting lever)

21BAB004

[$]

lifting lever (with plastic clamp)

21AZB151

[$]

large hand (pointer)

21AZB120

[$]

intermediate gear (engages with the spindle rack)

21BZB007

[$]

2424

dust cap (end cap)

900357

[$]

crystal (may require crystal press for insertion)

101032

[$]

bezel (black metal) without crystal

102954

[$]

bezel with crystal installed (discontinued)

2424-10

return spring (fits on end of spindle)

102905

[$]

crystal (may require crystal press for insertion)

101032

[$]

bezel with crystal installed (discontinued)

2424S-10

plastic bezel and crystal (new style)

21AZB161

[$]

o-ring for plastic bezel

192725

[$]

2424S-19

plastic bezel and crystal (new style)

21AZB161

[$]

take-up gear assembly (with spring)

21BZB186

[$]

2506F

bezel and crystal unit

192683

[$]

o-ring for plastic bezel

192725

[$]

2576F-60

bezel and crystal unit

192683

[$]

o-ring for plastic bezel

192725

[$]

2776

bezel with crystal installed (discontinued)

bezel retaining spring (large)

101029

[$]

bezel retaining spring (small)

101030

[$]

2776F

bezel and crystal unit

192683

[$]

2776S

plastic bezel and crystal (new style)

21AZB161

[$]

lifting lever

21AZB151

[$]

spindle guide pin

21BAB003

[$]

2802S-70

plastic bezel and crystal (new style)

21AZB161

[$]

2803

crystal (may require crystal press for insertion)

101032

[$]

2803-10

standard contact point (for other style points see page 133)

900032

[$]

crystal (may require crystal press for insertion)

101032

[$]

2803F-10

bezel and crystal unit

192683

[$]

2804-10

bezel with crystal installed (discontinued)

bezel clamp

101042

[$]

screw for bezel clamp

101043

[$]

spindle stop screw (suitable for lifting the spindle)

101047

[$]

2804F-10

bezel with crystal installed

192683

[$]

2802S-10
2803S-10
280
4S-10
2805S-10

plastic bezel and crystal unit

21AZB161

[$]

2806SSN

plastic bezel and crystal unit

21AZB161

[$]

2904F

screw for back cover or lug back

112108

[$]

2923

crystal (may require crystal press for insertion)

101032

[$]

2923-10

crystal (may require crystal press for insertion)

101032

[$]

bezel with crystal installed (discontinued)

bezel clamp (washer)

101042

[$]

2923F-10

bezel and crystal unit

192683

[$]

end cap

101125

[$]

bezel clamp (washer)

21BAA083

[$]

bezel clamp screw

101043

[$]

large hand (pointer)

900573

[$]

2923S-10

plastic bezel and crystal unit

21AZB161

[$]

dovetail bracket (see note)

21AAB161

[$]

bezel clamp (see note)

21AAB163

[$]

bezel clamp screw (see note)

101214

[$]

3416

crystal only for chrome bezel (difficult to install)

900706

[$]

3428S-19

crystal and bezel assembly (snap on)

21AZB236

[$]

3424S-10

crystal and bezel assembly (snap on)

21AZB236

[$]

3802-10

crystal only (difficult to install)

900706

[$]

o-ring for bezel

137206

[$]

3802S-10
3803S-10

crystal and bezel assembly (snap on)

21AZB236

[$]

o-ring for bezel

21BAA059

[$]

4803-10

crystal only (difficult to install)

110443

[$]

 

StanleyScrewDriverSet 

Indispensible screwdriver set for successful indicator repairs. Includes the all important Phillips #1 and #2 as well as four smaller slot screwdrivers.

Slot 1.4 mm
Slot 1.8 mm
Slot 2.3 mm
Slot 3.0 mm
Phillips #1
Phillips #0

For details, click on the link:

Stanley 6 piece precision screwdriver set

 

Digital Indicators

all 543 series

contact point for 3/8" diameter spindle

900032

[$]

543-252B

lifting lever and mounting screw

903425

[$]

battery cover

02ACA381

[$]

543-253B

battery cover

02ACA381

[$]

o-ring for battery cover

308790

[$]

lug back attaches directly over the flat back

101306

[$]

543-260B

battery cover

21EAA020

[$]

o-ring for battery cover

308790

[$]

543-262B

cover assembly without electronics (does not include battery cover)

09GZA352B

[$]

module assembly (does not include battery cover)

09GZA351B

[$]

battery cover

21EAA020

[$]

o-ring for battery cover

308790

[$]

543-263B

battery cover

21EAA020

[$]

o-ring for battery cover

308790

[$]

lifting lever with end screw (see note at bottom of this page)

902794

[$]

543-264B
543-265B
543-266B
543-267B

positive battery terminal (This is the little metal piece that makes contact with the side of the battery. It's also the one that breaks off very easily when the battery is inserted carelessly.)

09GAA230

[$]

543-272B

battery cover

02ACA381

[$]

543-392BD

lifting lever (only)

21AZB149

[$]

spindle end screw for lifting lever

101047

[$]

543-402B

display module (display unit)

21EZA158B

[$]

lug back (lug on center)

21BAB102

[$]

543-453B

lug back attaches directly over the flat back

101306

[$]

battery cover

02ACA381

[$]

o-ring for battery cover

308790

[$]

543-463B

lug back attaches directly over the flat back

101306

[$]

battery cover

02ACA381

[$]

o-ring for battery cover

308790

[$]

543-683B

battery cover

02ACA381

[$]

lifting lever and mounting screw

903425

[$]

lug-on-center back

02ACB430

[$]

543-692B
543-693B
543-696B
 

lug-on-center back

02ACB430

[$]

lifting lever and mounting screw

903425

[$]

545-135

crystal (will require crystal press for insertion)

101032

[$]

547-300

lifting lever

900525

[$]

screw to mount the lifting lever

101182

[$]

spindle end screw for lifting lever

101047

[$]

547-520

spindle end screw for lifting lever

101047

[$]

lifting lever

903307

[$]

screw to mount the lifting lever

101182

[$]

547-528

lifting lever

902794

[$]

screw to mount the lifting lever

101182

[$]

575-121

battery cover

02ACA381

[$]

o-ring for battery cover

308790

[$]

battery

938882

[$]

 

How to place an order: Take note of the part numbers and quantities you need and proceed to page 187 for prices and ordering.

*Illustrated notes


New style "S" indicators have a 3-piece bezel clamp which attaches to the indicator's dovetails located on either side of the body.

You may want to order all 3 parts of this clamp (dovetail bracket #21AAB161, bezel clamp #21AAB163, and bezel clamp screw #101214) as shown here.

This clamp can not be used with the old style indicators.

CAA149
Mitutoyo bezel and crystal assembly 21CAA149 comes as one unit. A clear plastic crystal is glued atop the black plastic bezel. The o-ring which holds this unit in place on the indicator is not included and must be bought separately. You will have best results if you replace the o-ring whenever you replace the bezel/crystal assembly.

Bezels and crystals are model specific. Be sure to check the listing above to order the correct item for your model. This particular bezel only fits Group 1 indicators. For Group 2 indicators you will want part 192683.

For further instructions and tools for crystal insertion see page 15.

CZA003
*Hands
(pointers) have a small hole that has to be press-fit over the shaft of the center pinion. For that reason, the holes are always a little undersize.

You may find that reaming the hole with a very fine reamer is called for (see photo). If you try to tap the hand onto the center pinion otherwise, you may end up breaking or bending the shaft. This is a task better left to pros with proper tools.

You can order miniature reamers on page 31.

 

Mitutoyo902794
Lifting lever 902794 includes the screw which fits into the top of the spindle. It does not include the screw which mounts the lever to the indicator body. On most models, this lever can be mounted for left or right handed use.

Lifting levers are model specific. Before ordering, be sure to check the manufacturer's parts list.

image004

New style lifting levers for indicators ending in "S" or indicators which have a dovetail designed to attach these "snap-on" style levers. You may also need the spindle end screw which allows the lever to lift the spindle. Dimensions shown above are metric. Lifting levers are model specific. Before ordering, be sure to check the manufacturer's parts list.

 

springs
There are two
bezel retaining springs on older dial indicator models. They have a nasty habit of jumping away from you when you try to disassemble this gage.

The photo shows the two different kinds in case you want to shape your own out of some spring wire, or if you'd like to buy a replacement. The larger spring on the left is #101029 and the smaller spring on the right is #101030.

One of each kind is required. See the list above to order these.

 



The above items constitute advertisements on behalf of Amazon.com and are not to be construed as endorsements by Long Island Indicator Service. We strongly believe in buying quality tools and gages, and urge customers to check carefully before making a purchase. If the prices appear unusually low, we suggest proceeding with caution.

 

Available soon: Long Island Indicator Companion Reference Book, 2nd Edition

BesTest and TesaTast Indicator Repair Manual … page 177
Starrett 711 Last Word Indicator Repair Manual … page 199
Interapid Indicator Repair Manual … page 208
Compac Test Indicator Repair Manual … page 194
Mitutoyo Test Indicator Repair Manual … page 102
 

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14 Sarah Drive — Hauppauge NY 11788 — USA


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This page's most recent revision: 3 SEPTEMBER 2017
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Original photographs and content copyright 2017 by JWGrum

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