38-7648-221-00-4-10
View detailed technical data, stock status, and sourcing information for: 38-7648-221-00-4-10
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An instrument which measures the ratio of electrical power with reference to a predetermined value and is calibrated in units of sound intensity, usually decibels. The value may be expressed by means of a pointer and calibrated dial or a digital readout display. If other than audio frequency ranges, see meter, noise level.
0.250 inches nominal inside diameter, 0.281 inches nominal distance from hole center to knob/skirt base, 1.000 inches nominal width, 2 setscrew hole quantity, 0.500 inches nominal overall depth
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Inside Diameter
- 0.250 inches nominal
- Setscrew Hole Quantity
- 2
- Distance From Hole Center To Knob/Skirt Base
- 0.281 inches nominal
- Overall Depth
- 0.500 inches nominal
- Width
- 1.000 inches nominal
- Fluted Foil Quantity
- 7
- Gripping Surface Condition
- smooth
- Shaft Accommodation Style
- round
- Skirt Style
- flared
- Reference Marking
- single line and dot
- Attachment Method
- setscrews
- Overall Thickness
- 0.656 inches nominal
- Screw Drive Type
- slot
- Thread Quantity Per Inch
- 32 screw hole
- Nominal Thread Size
- 0.164 inches screw hole
- Skirt Outside Diameter
- 1.250 inches nominal
- Skirt Design
- nondetachable
- Style Designator
- fluted foils
- Thread Series Designator
- unc screw hole
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5355-00-144-7198 | No Name Available | 01/28/1970 |
| 5355-00-168-3168 | No Name Available | 02/13/1985 |
| 5355-00-668-3781 | No Name Available | 07/30/1973 |
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 |
|---|---|
| 38-7648-221-00-4-10 | Knob |
| 648-3LBB | Knob |
| 833605-00 | Knob |
| S648-3LBB | Knob |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5355-00-668-4649?
Does the NSN 5355-00-668-4649 have a Schedule B code assigned?
Does NSN 5355-00-668-4649 require demilitarization?
Does NSN 5355-00-668-4649 contain precious materials?
Does NSN 5355-00-668-4649 contain hazardous materials?
When the NSN 5355-00-668-4649 was assigned to the Federal Catalog?
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