The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-668-4152, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-668-4152 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 AND -0.0010 TO 0.0010 |
| Terminal Diameter | 0.050 INCHES NOMINAL IN |
| Terminal Length | 0.203 INCHES NOMINAL IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.782 INCHES NOMINAL IN |
| Equivalent Resistance Value in Ohms | 20.0 NOMINAL |
| Overall Thickness | 0.346 INCHES NOMINAL IN |
| Style Designator | TUBE BODY, WIRE LEADS |
| Drive Level Rating | 10.0 MILLIWATTS NOMINAL AND 9.0 MILLIWATTS MINIMUM AND 11.0 MILLIWATTS MAXIMUM |
| Body Length | 1.500 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.500 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Operating Temp Range | -0.1 TO 65.0 CELSIUS DEGC |
| Test Data Document | 81349-MILC3098B 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.). |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 40.975 KILOHERTZ |
| Body Thickness | 0.344 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| RH8B69KC | 3/2 Design control — primary reference U.S. Government activity |
| HC13U27-3KC | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5955-00-668-4152 is a Crystal Unit,quartz, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
Key specifications for 5955-00-668-4152: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005 AND -0.0010 TO 0.0010; Terminal Diameter: 0.050 INCHES NOMINAL IN; Terminal Length: 0.203 INCHES NOMINAL IN; Mode of Oscillation: FUNDAMENTAL. 17 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.