page 193

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Mercer & Compac series 550
dial indicator parts list

Swiss-made Compac indicators such as 555AE belong to series 550. Inch reading indicators have the letter "A" as part of the model number. The letter "E" indicates that the gage is water proof. The letter "B" indicates the presence of a bezel lock. Most inch reading Compac dial indicators have been replaced by Mercer models.

Only the following metric Series 550 models are still in production (as of 2016):

  • 555
  • 555E (water proof)
  • 556
  • 556E (water proof)
  • 556G

Compac dial indicator contact points have M2.5 threads.

Mercer Type 241-1 (model 014.26029) used the same parts as Compac 555AB

For professional repair service of your Compac and Mercer dial indicators, see page 30.

This page is for reference only. These parts are currently not available for sale.

Dwg

Part no.

contact point ball steel 3 mm ø x 6 mm L

03560001

contact point (flat ø 2mm / 15mm long) steel

03560028

contact point extension 10mm

03560042

contact point extension 15mm

03560043

contact point extension 20mm

03560044

contact point extension 35mm

03560047

other M2.5 contact points and extensions are shown on page 133

0

stem adapter sleeve 8mm to 3/8"

045031

4

rack

041435

5

rack for waterproof models

043696

6

spring anchor

041314

7

rack guide

041170

8

return spring for rack

041436

9

cap

041316

10

stop cap for waterproof models

041361

11

bellows

005191

12

contact point (ball ø 3mm / 6mm long)

035100-10

12

contact point (tapered flat to ø 3,4 / 8mm long)

035600-22

12

contact point (ball ø 3mm / 10mm long)

042165

14

movement: 555 / 556

043725

16

brass bearing ø 2.5/1.0 x 0.8 mm

042354

17

brass bearing ø 2.5/1.0 x 1.3 mm

042357

18

brass bearing ø 2.5/0.6 x 0.8 mm

042358

19

threaded bushing

042375

20

jewel ø2.5/0.6 x 0.6 mm

042368

21

jewel ø2.5/1.0 x 0.6 mm

042366

23

shockproof gear: 555 / 556

043726

24

shockproof gear: 555A / 556A

043737

26

second gear: 555 / 556

043727

27

second gear: 555A / 556A

043738

28

center pinion

041465

29

intermediate gear

043728

31

hair spring gear: 550 series

043729

33

hair spring: 550 series

043686

34

screw M1,6

041987

35

screw M1,7

041976

36

bezel (blue) .0005" ø 58 mm

041445

36

bezel (red) .0001" ø 58 mm

041447

36

bezel (grey) .0001" ø 58 mm

37

friction spring

041325

38

O-ring (replaces 041325 in waterproof models)

042254

39

nut

041352

40

dial bushing

041353

43

dial (clockwise): 555 / 555B / 555E

043707

44

dial (clockwise): 555A / 555AB / 555AE

043711

45

dial (clockwise): 556 / 556B / 556E

043730

46

dial (clockwise): 556A / 556AB / 556AE

043739

Mercer dial Type 241-1

51

large hand

043691

52

small hand

041450

53

O-ring (48 x 1,2 mm)

042256

55

crystal (snap-on style)

041329

55

crystal (flat plastic, old style)

041356

55

O-ring for snap-on crystal (54 x 1 mm)

042257

56

tolerance marker (left)

041451

56

tolerance marker (right)

041452

58

flat back (metal)

014600-13

59

flat back (synthetic)

042265

60

lug back (on center)

014600-14

60

lug back (off center)

014600-15

60

8mm post back

014600-16

60

18mm post back accepts 6mm screw

014600-17

61

metal ring for gasket

041364

62

gasket

041363

63

screw for back (M3x4,5)

041995

64

screw for waterproof back (M3x6)

041996

65

end cap for waterproof models

041362

66

rubber ring for end cap

042252

67

bezel lock with 1.6 mm hole

041197

68

bezel lock knob for 1.6 mm screw

041198

69

bezel lock screw 1.6 mm

041199

70

jewel ø2.5/1.0 x 0.8 mm

042367

 

How to order parts: take note of the part numbers and quantities you need, then proceed to the parts price list to place your order online.

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This page's most recent revision: 21 AUGUST 2016
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Original photographs and content copyright 2016 by JWGrum

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