CR18/U4M000000
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An enclosure, including two or more electrodes, in which a flow of electrons may occur through a vacuum or a contained gas. The electronic conduction takes place either by means of electrons emitted from a cathode or by ionization of the contained gas. Includes phototubes (photoemissive type only), geiger-mueller tubes, traveling wave tubes, cathode ray tubes and microwave tubes (klystron, magnetron, or the like). Excludes:items whose primary purpose is to produce light energy; photoelectric cell; and semiconductor device (as modified).
0.775 inches maximum body length, 0.757 inches maximum overall width, 1.023 inches maximum overall length, 0.223 inches minimum and 0.248 inches maximum terminal length, 0.725 inches maximum body width
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Overall Length
- 1.023 inches maximum
- Terminal Length
- 0.223 inches minimum and 0.248 inches maximum
- Overall Width
- 0.757 inches maximum
- Body Length
- 0.775 inches maximum
- Body Width
- 0.725 inches maximum
- Body Thickness
- 0.317 inches maximum
- Overall Thickness
- 0.352 inches maximum
- Terminal Diameter
- 0.048 inches minimum and 0.052 inches maximum
- Mode Of Oscillation
- fundamental
- Circuit Resonance
- antiresonance
- Load Capacitance In Picofarads
- 31.5 minimum and 32.5 maximum
- Shunt Capacitance In Picofarads
- 7.0 maximum
- Specified Frequency
- 4.000 megahertz
- Center To Center Distance Between Terminals
- 0.478 inches minimum and 0.494 inches maximum
- Operating Temp Range
- -55.0 to 105.0 celsius
- Drive Level Rating
- 8.0 milliwatts minimum and 12.0 milliwatts maximum
- Frequency Tolerance For Operating Temp In Percent
- -0.005 to 0.005
- Equivalent Resistance Value In Ohms
- 75.0 maximum
- Style Designator
- oval body, pin terminals
- Test Data Document
- "81349-milc3098 specification (includes engineering type bulletins, brochures,etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "nominal", etc.)."
- Specification/Standard Data
- 81349-milc3098/3 government specification
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 5955-00-735-1436 | No Name Available | 07/16/1972 |
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 |
|---|---|
| 291-8131-00 | Quartz Crystal Unit |
| 291-8131-000 | Quartz Crystal Unit |
| CR18/U4M000000 | Quartz Crystal Unit |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 5955-00-882-8672?
Does the NSN 5955-00-882-8672 have a Schedule B code assigned?
Does NSN 5955-00-882-8672 require demilitarization?
Does NSN 5955-00-882-8672 contain precious materials?
Does NSN 5955-00-882-8672 contain hazardous materials?
When the NSN 5955-00-882-8672 was assigned to the Federal Catalog?
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Pricing
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