The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-166-9682, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Wenzel International Inc Div Croven Crystals. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5955-00-166-9682 |
| Primary Part Number | 289-7156-160 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Wenzel International Inc Div Croven Crystals |
| Status | ACTIVE |
| Controlled Reference Temp | 75.0 CELSIUS DEGC |
| Operable Temp Range | -55.0 TO 90.0 CELSIUS DEGC |
| Frequency Tolerance for Operating Temp in Percent | -0.001 TO 0.001 AND -0.003 TO 0.003 |
| Terminal Diameter | 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN |
| Overall Diameter | 0.370 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES MINIMUM IN |
| Mode of Oscillation | THIRD OVERTONE AND FIFTH OVERTONE |
| Equivalent Resistance Value in Ohms | 50.0 NOMINAL |
| Frequency Stability in Percent | -0.0005 TO 0.0005 |
| Style Designator | HAT TYPE, 3 WIRE LEADS |
| Diameter | 0.305 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN |
| Drive Level Rating | 0.5 MILLIWATTS NOMINAL AND 3000.0 MICROAMPERES NOMINAL |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 2.5 NOMINAL AND 2.0 MINIMUM AND 3.0 MAXIMUM |
| Operating Temp Range | +70.0 TO 80.0 CELSIUS DEGC |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 50.3594 MEGAHERTZ |
| 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 |
|---|---|
| 289-7156-160 | Wenzel International Inc Div Croven Crystals (CAN) |
| Reference | Meaning |
|---|---|
| 289-7156-160 | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5955-00-166-9682 is a Crystal Unit,quartz, manufactured by Wenzel International Inc Div Croven Crystals, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-166-9682 has 1 manufacturer part number on file: 289-7156-160 (Wenzel International Inc Div Croven Crystals).
Key specifications for 289-7156-160: Controlled Reference Temp: 75.0 CELSIUS DEGC; Operable Temp Range: -55.0 TO 90.0 CELSIUS DEGC; Frequency Tolerance for Operating Temp in Percent: -0.001 TO 0.001 AND -0.003 TO 0.003; Terminal Diameter: 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN. 18 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.