The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-258-8763, 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 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-258-8763 |
| Primary Part Number | MC438X2-001W |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| Status | ACTIVE |
| Circuit Construction Type | SOLID STATE |
| Inclosure Type | ENCASED |
| Control Type | REMOTE |
| Frequency Per Channel | 21.9375 MEGAHERTZ NOMINAL OPERATING CHANNEL |
| Connection Type | PIN LEFT SIDE |
| Connection Contact Type and Quantity | 3 PIN EXTERNAL |
| Operating Control Method | AUTOMATIC |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Storage Temp Range | -65.0 TO 80.0 CELSIUS DEGC |
| Average Life Measurement | NOT RATED |
| Operating Temp Range | -45.0 TO 75.0 CELSIUS DEGC |
| Installation Design | MECHANICAL |
| External DC Operating Voltage in Volts | 10.0 MINIMUM SINGLE VOLTAGE AND 16.0 MAXIMUM SINGLE VOLTAGE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MC438X2-001W | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| 970-3915-0 | Cts Inc (USA) |
| 7030-783 | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| K1518AE | Department of State Health Services (USA) |
| Reference | Meaning |
|---|---|
| SM-C-939825D | 3/2 Design control — primary reference U.S. Government activity |
| 001-46520 | 5/9 Secondary reference Quartztek Inc |
| 7030-783 | 5/9 Secondary reference Spectrum Technology Inc |
| TCX0101-10 | 5/9 Secondary reference Isotemp Research Inc. |
NSN 5955-01-258-8763 is a Oscillator,crystal Controlled, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-258-8763 has 4 manufacturer part numbers on file: MC438X2-001W (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 970-3915-0 (Cts Inc), 7030-783 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), K1518AE (Department of State Health Services).
Key specifications for MC438X2-001W: Circuit Construction Type: SOLID STATE; Overall Height: 0.840 INCHES NOMINAL IN; Inclosure Type: ENCASED; Control Type: REMOTE. 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.
NSN 5955-01-258-8763 has DEMIL Code Q. 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.