The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-797-1822, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Raytheon Company Dba Raytheon Co. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-797-1822 |
| Primary Part Number | C221925 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Raytheon Company Dba Raytheon Co |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.0005 TO 0.0005 |
| Overall Diameter | 1.312 INCHES MAXIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 3000.0 MAXIMUM |
| Style Designator | OCTAL TUBE BASE |
| Diameter | 1.030 INCHES MAXIMUM IN |
| Drive Level Rating | 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM |
| Body Length | 1.875 INCHES MINIMUM AND 2.061 INCHES MAXIMUM IN |
| Load Capacitance in Picofarads | 45.0 NOMINAL |
| Circuit Resonance | ANTIRESONANCE |
| Operating Temp Range | -30.0 TO 75.0 CELSIUS DEGC |
| Specified Frequency | 80.860 KILOHERTZ |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| C221925 PRIMARY | Raytheon Company Dba Raytheon Co (USA) |
| C221925-1 | Raytheon Company Dba Raytheon Co (USA) |
| Reference | Meaning |
|---|---|
| T9SE | 5/9 Secondary reference Nel Frequency Controls Inc Dba Nel Frequency Controls Inc |
| C221925-1 | 5/2 Secondary reference U.S. Government activity |
NSN 5955-00-797-1822 is a Crystal Unit,quartz, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-797-1822 has 2 manufacturer part numbers on file: C221925 (Raytheon Company Dba Raytheon Co), C221925-1 (Raytheon Company Dba Raytheon Co).
Key specifications for C221925: Frequency Tolerance for Operating Temp in Percent: -0.0005 TO 0.0005; Overall Diameter: 1.312 INCHES MAXIMUM IN; Mode of Oscillation: FUNDAMENTAL; Equivalent Resistance Value in Ohms: 3000.0 MAXIMUM. 12 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.
NSN 5955-00-797-1822 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.