CR-27A/U

View detailed technical data, stock status, and sourcing information for: CR-27A/U
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Federal Supply Group

Electrical and Electronic Equipment Components

Federal Supply Classification

5955 Oscillators and Piezoelectric Crystals

National Stock Number

5955-01-009-9042

Item Name Code

00196

Assigment Date

09/21/1975 (50 years ago)

0.725 inches maximum body width, 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

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: 7.433333 megahertz
Frequency Tolerance At Reference Temp In Percent: -0.002 to 0.002
Frequency Stability In Percent: -0.0005 to 0.0005
Controlled Reference Temp: 75.0 celsius
Operable Temp Range: -55.0 to 90.0 celsius
Center To Center Distance Between Terminals: 0.478 inches minimum and 0.494 inches maximum
Operating Temp Range: +70.0 to 80.0 celsius
Drive Level Rating: 4.0 milliwatts minimum and 6.0 milliwatts maximum
Frequency Tolerance For Operating Temp In Percent: -0.002 to 0.002
Equivalent Resistance Value In Ohms: 24.0 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-milc3098/9 government specification

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
CR-27A/U	Quartz Crystal Unit
CR-27A/U7.433333MHZ	Quartz Crystal Unit
CR27/U7M433333	Quartz Crystal Unit

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 5955-01-009-9042?

The FSCG of the NSN 5955-01-009-9042 is 5955

Does the NSN 5955-01-009-9042 have a Schedule B code assigned?

Yes, the Schedule B code is 8541900000

Does NSN 5955-01-009-9042 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 5955-01-009-9042 contain precious materials?

Precious metal content is unknown

Does NSN 5955-01-009-9042 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 5955-01-009-9042 was assigned to the Federal Catalog?

It was assigned 50 years ago, on Sun, Sep 21, 1975