U

U1

FEATURES

Anodized natural or black gloss finish.

Anti-static plastic insert. (on many models)

Positive retention #6-32 set screws.

Fits 1/8" dia. & 1/4" dia. shafts.

Functionally rugged.

Special designs available.

Notes: Dims. in inches & (millimeters).

Shaft size is last 3 digits of Model No.

42003 SERIES

Diamond knurl plastic insert and line indicator on side

CONTROL KNOBS,

MACHINED ALUMINUM

MODEL (Color-natural)

MODEL (Color-black)

A

B

C

D

E

F

G

420031A1/8*

420031B1/8*

.500 (12.7)

.402 (10.2)

.380 (9.7)

.402 (10.2)

.634 (16.1)

.516 (13.1)

.469 (11.9)

420031A1/4*

420031B1/4*

.500 (12.7)

.402 (10.2)

.380 (9.7)

.402 (10.2)

.634 (16.1)

.516 (13.1)

.469 (11.9)

420033A1/4*

420033B1/4*

.748 (19.0)

.681 (17.3)

.591 (15.0)

.681 (17.3)

.634 (16.1)

.516 (13.1)

.469 (11.9)

420035A1/4*

420035B1/4*

.940 (23.9)

.870 (22.1)

.709 (18.0)

.870 (22.1)

.634 (16.1)

.516 (13.1)

.469 (11.9)

420037A1/4*

420037B1/4*

1.252 (31.8)

1.170 (29.6)

.980 (24.9)

1.170 (29.6)

.748 (19.0)

.630 (16.0)

.591 (15.0)

MODEL (Color-natural)

MODEL (Color-black)

ABC

D

E

F

G

420011A1/8*

420011B1/8*

.500 (12.7)

.430 (10.9)

.380 (9.7)

.430 (10.9)

.630 (16.0)

.512 (13.0)

.430 (10.9)

420011A1/4*

420011B1/4*

.500 (12.7)

.430 (10.9)

.380 (9.7)

.430 (10.9)

.630 (16.0)

.512 (13.0)

.430 (10.9)

420013A1/4

420013B1/4

.748 (19.0)

.638 (16.2)

.591 (15.0)

.661 (16.8)

.630 (16.0)

.512 (13.0)

.429 (10.9)

420015A1/4

420015B1/4

.941 (23.9)

.819 (20.8)

.709 (18.0)

.819 (20.8)

.630 (16.0)

.512 (13.0)

.429 (10.9)

42001 SERIES

Fluted with plastic insert and line indicator on side

41005 SERIES

Smooth finish with knurled black plastic insert and black indicator line on top

MATERIALS

Knob:

Machined aluminium (with plastic insert, where indicated).

Threaded Insert:

Brass.

Setscrew:

Heat treated high alloy steel with cup point and hex head,

or slotted head. Note: 1 or 2 supplied, depending on model.

MODEL (Color natural)

A

B

C

410051A1/8

.630 (16.0)

.512 (13.0)

.590 (15.0)

410051A1/4

.630 (16.0)

.512 (13.0)

.590 (15.0)

410053A1/8

.874 (22.2)

.472 (12.0)

.531 (13.5)

410053A1/4

.874 (22.2)

.646 (16.4)

.690 (17.5)

410055A1/4

1.260 (32.0)

.472 (12.0)

.551 (14.0)

Note: Knob color is natural only for this Series.

* indicates solid

aluminum knob

* indicates solid

aluminum knob

Note: 420031A1/8 & 420031A1/4 have only one set screw.