MS21384-20
View detailed technical data, stock status, and sourcing information for: MS21384-20
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A tubular shaped unthreaded item with or without a flange at one end designed to be inserted into a hole to reduce the inside diameter of the hole and to protect the surrounding body structure from damage resulting from stress, strain, and/or vibration. The overall length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body. Includes items which are divided into two or more segments which includes 180 degrees (3.141 radians) or less of the bearing periphery. For items made of rubber, see bushing, nonmetallic. See also bearing, sleeve; bushing, tapered; spacer, sleeve; insulator, bushing; and bushing, electrical conductor. Excludes:bushing, drill, jig.
0.140 inches minimum and 0.180 inches maximum counterbore depth, 0.252 inches minimum and 0.254 inches maximum inside diameter, 0.290 inches minimum and 0.330 inches maximum distance from hole center to knob/skirt base, 0.360 inches minimum and 0.400 inches maximum counterbore diameter, 2 setscrew hole quantity
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
- 0.360 inches minimum and 0.400 inches maximum
- Counterbore Depth
- 0.140 inches minimum and 0.180 inches maximum
- Setscrew Hole Quantity
- 2
- Distance From Hole Center To Knob/Skirt Base
- 0.290 inches minimum and 0.330 inches maximum
- Overall Depth
- 0.480 inches minimum and 0.520 inches maximum
- Gripping Surface Condition
- smooth
- Shaft Accommodation Style
- counterbored
- Outside Diameter
- 0.980 inches minimum and 1.020 inches maximum
- Reference Marking
- line
- Attachment Method
- setscrews
- Overall Thickness
- 0.600 inches minimum and 0.640 inches maximum
- Screw Drive Type
- hexagon socket
- Thread Quantity Per Inch
- 32 screw hole
- Nominal Thread Size
- 0.164 inches screw hole
- Pointer Design
- nondetachable
- Special Features
- flatted shaft hole,0.222 in. min 0.224 in. max w
- Color
- gray, fed std 595, 36231
- Style Designator
- round with single pointed bar face
- Thread Series Designator
- unc screw hole
- Specification/Standard Data
- 96906-ms21384 government standard
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 |
|---|---|
| MS21384-14ENN | Knob |
| MS21384-20 | Knob |
| NASM21384 | Knob |
| ST5M1252N103A | Knob |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5355-00-559-4937?
Does the NSN 5355-00-559-4937 have a Schedule B code assigned?
Does NSN 5355-00-559-4937 require demilitarization?
Does NSN 5355-00-559-4937 contain precious materials?
Does NSN 5355-00-559-4937 contain hazardous materials?
When the NSN 5355-00-559-4937 was assigned to the Federal Catalog?
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