Discount Electronic Components
Tedss.com can supply you with top quality American made military grade control knobs. These knobs were made in the USA and met the MS91528 specifications. These knobs were molded with high-impact polycarbonate and have corrosion-resistant aluminum inserts for maximum strength. These knobs are used primarily on potentiometers, variable capacitors and rotary switches. Their excellent quality and uniform appearance provide you with reliable performance and distinctive customer appeal to all of your products.
- Round
- Round Ring-skirted
- Round Dial-skirted
- Pointer
- Bar Pointer
- Concentric
- Crank (spinner)
- Black Matte (dull finish)
- Black Mirror (shinny finish)
- Gray Matte (dull finish)
- Gray Mirror (shinny finish)
- Red Matte (dull finish)
- Red Mirror (shinny finish)
- 0.5 inch (50 Series)
- 0.75 inch (70 Series)
- 1 inch (90 Series)
- 1.25 inch (125 Series)
- 1.75 inch (175 Series)
- 2.25 inch (225 Series)
- 0.127 inches
- 0.19 inches
- 0.252 inches
- 0.37 inches
These knobs were also made with optional markings to help in their application. The most common options were knobs marked with a white dot designated by WD and a white line designated with WL. They were made to function effectively with a temperature range of -65ºC to +125ºC. Two 4-40 UNC-3A set screws are provided in all.125 inch shaft hole diameters. Two 8-32 UNC-3A set screws are provided for all larger knobs with a shaft hole of .187 inches or bigger. These screws are made of treated steel.
Today the MS91528 series knobs are currently made by the Electronic Hardware Corp and we can quote you on any of their current product offerings from both our stock and directly from the manufacturer.
Part Number Breakdown
| G | 70 | - | 3 | BL | - | 2 | G | - | 4 |
|---|---|---|---|---|---|---|---|---|---|
| Color | Series (diameter) | Type | Style | Shaft Hole | Finish | Tactile Form (optional) |
none = black
G = gray
R = red
50 = 0.5 inch
70 = 0.75 inch
90 = 1.0 inch
125 = 1.25 inch
175 = 1.75 inch
225 = 2.25 inch
1 = round, unskirted
2 = round, skirted
3 = round, dial skirted with arrow
4 = unskirted pointer
5 = skirted pointer
6 = crank
7 = bar pointer, unskirted
8 = bar pointer, dial skirted
BL = backlighted dial
CB concentric lower knob
LK = knob lock pointer knob
NP = no arrow on dial
WD = white dot
WL = white line
1 = 0.127 inch
2 = 0.252 inch
3 = 0.190 inch
4 = 0.267 inch
5 = 0.377 inch
1D = 0.127 D flat
2D = 0.252 inch D flat
none = mirror
G = matte
1 = intensity - blue
2 = tune - orange
3 = dimmer - white
4 = gain - red
5 = focus - violet
6 = range - yelloe
7 = marker - green
8 = bearing - gray
