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B4028185 — CRYSTAL UNIT,QUARTZ

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B4028185: CRYSTAL UNIT,QUARTZ.

The CRYSTAL UNIT,QUARTZ is a the manufacturer industrial component. Key specifications include diameter: 0.326 INCHES MAXIMUM0.326 INCHES MAXIMUM IN, material: GLASS COVER HOLDER, overall_length: 0.265 INCHES MAXIMUM0.265 INCHES MAXIMUM IN, terminal_length: 0.600 INCHES MINIMUM0.600 INCHES MINIMUM IN, overall_diameter: 0.420 INCHES MAXIMUM0.420 INCHES MAXIMUM IN, style_designator: HAT TYPE, 3 WIRE LEADS. This part is cataloged in the U.S.

Government catalog under NSN 5955-01-207-3573, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
B4028185
NSN: 5955-01-207-3573
FSC: 5955 — Oscillators and Piezoelectric Crystals
CAGE: 56996 — DEPARTMENT OF THE ARMY HQ UNITED STATES ARMY COMMUNICATIONS RESEARCH AND DEVELOPMENT COMMAND (USA)
SPECIFICATIONS
diameter0.326 INCHES MAXIMUM0.326 INCHES MAXIMUM IN
materialGLASS COVER HOLDER
overall_length0.265 INCHES MAXIMUM0.265 INCHES MAXIMUM IN
terminal_length0.600 INCHES MINIMUM0.600 INCHES MINIMUM IN
overall_diameter0.420 INCHES MAXIMUM0.420 INCHES MAXIMUM IN
style_designatorHAT TYPE, 3 WIRE LEADS
circuit_resonanceSERIES RESONANCESERIES RESONANCE
terminal_diameter0.018 INCHES NOMINAL0.018 INCHES NOMINAL IN
drive_level_rating2.0 MILLIWATTS NOMINAL AND 2.0 MILLIWATTS NOMINAL AND 1.6 MILLIWATTS MINIMUM AND 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM2.4 MILLIWATTS MAXIMUM
mode_of_oscillationTHIRD OVERTONE AND THIRD OVERTONE AND FIFTH OVERTONEFIFTH OVERTONE
specified_frequency79.9995 MEGAHERTZ79.9995 MEGAHERTZ
operating_temp_range-55.0 TO 105.0 CELSIUS AND -55.0 TO 105.0 CELSIUS AND -55.0 TO 125.0 CELSIUS-55.0 TO 125.0 CELSIUS DEGC
NSN5955-01-207-3573
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CRYSTAL UNIT,QUARTZ TITLE COMPONENT PN B4028185 MFR CRYSTAL UNIT,QUARTZ
KEY FEATURES
•
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT: -0.0025 TO 0.0025 AND -0.0025 TO 0.0025 AND -0.005 TO 0.005-0.005 TO 0.005
•
TERMINAL DIAMETER: 0.018 INCHES NOMINAL0.018 INCHES NOMINAL IN
•
OVERALL DIAMETER: 0.420 INCHES MAXIMUM0.420 INCHES MAXIMUM IN
•
TERMINAL LENGTH: 0.600 INCHES MINIMUM0.600 INCHES MINIMUM IN
•
MODE OF OSCILLATION: THIRD OVERTONE AND THIRD OVERTONE AND FIFTH OVERTONEFIFTH OVERTONE
•
EQUIVALENT RESISTANCE VALUE IN OHMS: 50.0 MAXIMUM50.0 MAXIMUM
•
STYLE DESIGNATOR: HAT TYPE, 3 WIRE LEADS
•
DIAMETER: 0.326 INCHES MAXIMUM0.326 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FREQUENCY TOLERANCE FOR OPERATING TEMP IN PERCENT-0.0025 TO 0.0025 AND -0.0025 TO 0.0025 AND -0.005 TO 0.005-0.005 TO 0.005
TERMINAL DIAMETER0.018 INCHES NOMINAL0.018 INCHES NOMINAL IN
OVERALL DIAMETER0.420 INCHES MAXIMUM0.420 INCHES MAXIMUM IN
TERMINAL LENGTH0.600 INCHES MINIMUM0.600 INCHES MINIMUM IN
MODE OF OSCILLATIONTHIRD OVERTONE AND THIRD OVERTONE AND FIFTH OVERTONEFIFTH OVERTONE
EQUIVALENT RESISTANCE VALUE IN OHMS50.0 MAXIMUM50.0 MAXIMUM
STYLE DESIGNATORHAT TYPE, 3 WIRE LEADS
DIAMETER0.326 INCHES MAXIMUM0.326 INCHES MAXIMUM IN
OVERALL LENGTH0.265 INCHES MAXIMUM0.265 INCHES MAXIMUM IN
DRIVE LEVEL RATING2.0 MILLIWATTS NOMINAL AND 2.0 MILLIWATTS NOMINAL AND 1.6 MILLIWATTS MINIMUM AND 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM2.4 MILLIWATTS MAXIMUM
OTHER ITEMS IN FSC 5955 — Oscillators and Piezoelectric Crystals
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5955-00-001-1622 5955-00-001-2933 5955-00-001-2977 5955-00-001-3014 5955-00-001-3242 5955-00-001-3243 5955-00-001-3244 5955-00-001-3328
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B4028185?
B4028185 is a CRYSTAL UNIT,QUARTZ.
What is the NSN for B4028185?
B4028185 is cataloged in the U.S. Government catalog under NSN 5955-01-207-3573. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.