The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-145-0449, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5955-01-145-0449 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Status | ACTIVE |
| Controlled Reference Temp | 40.0 CELSIUS DEGC |
| Operable Temp Range | +0.0 TO 80.0 CELSIUS DEGC |
| Frequency Tolerance for Operating Temp in Percent | -0.002 TO 0.002 AND -0.005 TO 0.005 |
| Terminal Diameter | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Frequency Tolerance at Reference Temp in Percent | -0.007 TO 0.007 |
| Overall Diameter | 0.420 INCHES MAXIMUM IN |
| Terminal Length | 0.620 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 150.0 MAXIMUM |
| Frequency Stability in Percent | -0.001 TO 0.001 |
| Style Designator | HAT TYPE, 3 WIRE LEADS |
| Diameter | 0.305 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN |
| Drive Level Rating | 0.7 MILLIWATTS MINIMUM AND 1.0 MILLIWATTS MAXIMUM |
| Center to Center Distance Between Terminals | 0.190 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Load Capacitance in Picofarads | 32.5 MINIMUM AND 33.5 MAXIMUM |
| Circuit Resonance | ANTIRESONANCE |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Operating Temp Range | -55.0 TO 115.0 CELSIUS DEGC |
| Specified Frequency | 4.096 MEGAHERTZ |
| 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 |
|---|---|
| 8596842-007 | 3/9 Design control — primary reference General Dynamics Land Systems Inc. |
NSN 5955-01-145-0449 is a Crystal Unit,quartz, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
Key specifications for 5955-01-145-0449: Controlled Reference Temp: 40.0 CELSIUS DEGC; Operable Temp Range: +0.0 TO 80.0 CELSIUS DEGC; Frequency Tolerance for Operating Temp in Percent: -0.002 TO 0.002 AND -0.005 TO 0.005; Terminal Diameter: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN. 19 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.