The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-247-2191, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled. Government technical data includes 13 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-247-2191 |
| Primary Part Number | 106571-001 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.001 TO 0.001 AND -0.003 TO 0.003 |
| Terminal Diameter | 0.050 INCHES NOMINAL IN |
| Terminal Length | 0.250 INCHES NOMINAL IN |
| Mode of Oscillation | FUNDAMENTAL |
| Overall Thickness | 0.340 INCHES NOMINAL IN |
| Style Designator | ROUND BODY, FERRULE TERMINALS |
| Body Length | 1.500 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.480 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Operating Temp Range | -0.1 TO 60.0 CELSIUS DEGC |
| Test Data Document | 91417-106571 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 4.550 KILOHERTZ |
| 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 |
|---|---|
| 106571-001 | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| Reference | Meaning |
|---|---|
| 106571-1 | C/1 Advisory reference — outside the item-of-supply concept Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| 106571-001 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5955-00-247-2191 is a Crystal Unit,quartz, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-247-2191 has 1 manufacturer part number on file: 106571-001 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).
Key specifications for 106571-001: Frequency Tolerance for Operating Temp in Percent: -0.001 TO 0.001 AND -0.003 TO 0.003; Terminal Diameter: 0.050 INCHES NOMINAL IN; Terminal Length: 0.250 INCHES NOMINAL IN; Mode of Oscillation: FUNDAMENTAL. 13 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.