The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-232-3402, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ultra Electronics Maritime Systems Inc Div Subsidiary of Ultra Electronics Holdings Limited. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-232-3402 |
| Primary Part Number | 025-597-019-000 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Ultra Electronics Maritime Systems Inc Div Subsidiary of Ultra Electronics Holdings Limited |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.002 TO 0.002 AND -0.005 TO 0.005 |
| Terminal Diameter | 0.0179 INCHES NOMINAL IN |
| Terminal Length | 1.500 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.402 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 50.0 NOMINAL |
| Overall Thickness | 0.183 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 5.0 MILLIWATTS NOMINAL AND 4.0 MILLIWATTS MINIMUM AND 6.0 MILLIWATTS MAXIMUM |
| 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 | -32.0 TO 71.0 CELSIUS DEGC |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 12500.000 KILOHERTZ |
| Body Thickness | 0.150 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 025-597-019-000 | Ultra Electronics Maritime Systems Inc Div Subsidiary of Ultra Electronics Holdings Limited (CAN) |
| SM-B-597019 | Wenzel International Inc Div Croven Crystals (CAN) |
| Reference | Meaning |
|---|---|
| SM-B-597019 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5955-01-232-3402 is a Crystal Unit,quartz, manufactured by Ultra Electronics Maritime Systems Inc Div Subsidiary of Ultra Electronics Holdings Limited, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-232-3402 has 2 manufacturer part numbers on file: 025-597-019-000 (Ultra Electronics Maritime Systems Inc Div Subsidiary of Ultra Electronics Holdings Limited), SM-B-597019 (Wenzel International Inc Div Croven Crystals).
Key specifications for 025-597-019-000: Frequency Tolerance for Operating Temp in Percent: -0.002 TO 0.002 AND -0.005 TO 0.005; Terminal Diameter: 0.0179 INCHES NOMINAL IN; Terminal Length: 1.500 INCHES MINIMUM IN; Mode of Oscillation: FUNDAMENTAL. 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.