The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-137-8239, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. Government technical data includes 16 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-137-8239 |
| 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 |
| Terminal Diameter | 0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN |
| Terminal Length | 0.228 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN |
| Mode of Oscillation | THIRD OVERTONE |
| Body Width | 0.400 INCHES NOMINAL IN |
| Equivalent Resistance Value in Ohms | 40.0 MAXIMUM |
| Overall Thickness | 0.175 INCHES NOMINAL IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM |
| Body Length | 0.516 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.192 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Operating Temp Range | -55.0 TO 90.0 CELSIUS DEGC |
| Specified Frequency | 35.88333 MEGAHERTZ |
| Body Thickness | 0.156 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 |
|---|---|
| 19658-3588 | 3/9 Design control — primary reference Cessna Aircraft Co Arc Avionics Div |
NSN 5955-00-137-8239 is a Crystal Unit,quartz, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
Key specifications for 5955-00-137-8239: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005; Terminal Diameter: 0.038 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN; Terminal Length: 0.228 INCHES MINIMUM AND 0.248 INCHES MAXIMUM IN; Mode of Oscillation: THIRD OVERTONE. 16 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.