121H4MA
View detailed technical data, stock status, and sourcing information for: 121H4MA
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Two or more insulated conductors (solid or stranded) contained in a common covering, or two or more insulated conductors twisted or molded together without a common covering, or one insulated conductor with a metallic covering, covering, shield, or outer conductor. The rated working voltage of the item must be 300 volts or more, or in lieu of this the test voltage must be 1,000 volts or more; and the size of each individual conductor must be number 18 american wire gage (0.75 square millimeters) or larger. For cables with uninsulated neutral conductor use the hightest rated voltage. Refers to bulk quantities only, for items of definite length with processed ends or terminated in fittings, see cable assembly, power, electrical. For low voltage aircraft and automotive cable, see cable, special purpose, electrical.
0.750 inches minimum counterbore diameter, 0.252 inches minimum and 0.254 inches maximum inside diameter, 2 setscrew hole quantity, 0.250 inches minimum counterbore depth, 0.427 inches maximum distance from hole center to knob/skirt base
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Inside Diameter
- 0.252 inches minimum and 0.254 inches maximum
- Counterbore Diameter
- 0.750 inches minimum
- Counterbore Depth
- 0.250 inches minimum
- Setscrew Hole Quantity
- 2
- Distance From Hole Center To Knob/Skirt Base
- 0.427 inches maximum
- Overall Depth
- 0.605 inches minimum
- Gripping Surface Condition
- grip aid
- Shaft Accommodation Style
- counterbored
- Outside Diameter
- 1.240 inches minimum and 1.280 inches maximum
- Skirt Style
- flared
- Reference Marking
- slot
- Attachment Method
- setscrews
- Overall Thickness
- 0.820 inches minimum and 0.880 inches maximum
- Material Transparency
- opaque
- Screw Drive Type
- hexagon socket
- Thread Quantity Per Inch
- 32 screw hole
- Nominal Thread Size
- 0.164 inches screw hole
- Skirt Outside Diameter
- 1.837 inches maximum
- Skirt Design
- nondetachable
- Color
- black, lusterless
- Style Designator
- round
- Thread Series Designator
- unc screw hole
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 121H4MA | Knob |
| 125S-3S-2G | Knob |
| 3H2B | Knob |
| 512-3DS-2M | Knob |
| MS91528-3H2B | Knob |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5355-00-836-3934?
Does the NSN 5355-00-836-3934 have a Schedule B code assigned?
Does NSN 5355-00-836-3934 require demilitarization?
Does NSN 5355-00-836-3934 contain precious materials?
Does NSN 5355-00-836-3934 contain hazardous materials?
When the NSN 5355-00-836-3934 was assigned to the Federal Catalog?
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