| Item Name | Oscillator Crystal Controlled |
| Federal Supply Group (FSG) | Electrical and Electronic Equipment Components |
| Federal Supply Class (FSC) | 5955 Oscillators Piezoelectric Crystals |
| National Item Identification Number (NIIN) | 01-156-8873 (011568873) |
| NCB Code | USA (01) |
| Manufacturer | Boeing Aerostructures Australia Pty Ltd, Xsis Electronics Inc |
| Part Number | Manufacturer | Item Name | Cage Code | RFQ |
|---|---|---|---|---|
| 148991 | boeing aerostructures australia pty ltd | oscillator crystal controlled | 94987 | RFQ |
| 148991-1 | boeing aerostructures australia pty ltd | oscillator crystal controlled | 94987 | RFQ |
| 148991-1 | xsis electronics inc | oscillator crystal controlled | 57051 | RFQ |
| X243 4.0MHZ | xsis electronics inc | oscillator crystal controlled | 57051 | RFQ |
| X243 AT 4.0MHZ | xsis electronics inc | oscillator crystal controlled | 57051 | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| ABHP | OVERALL LENGTH | 0.875 INCHES MAXIMUM |
| ABKW | OVERALL HEIGHT | 0.425 INCHES NOMINAL |
| ABMK | OVERALL WIDTH | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| ADZC | ENVIRONMENTAL PROTECTION | SHOCK RESISTANT AND VIBRATION |
| AECR | VIBRATION RESISTANCE RANGE IN HERTZ | 50.0 TO 2000.0 |
| AFDN | VIBRATION RESISTANCE AMPLITUDE | 50.0 GRAVITATIONAL UNITS |
| AFDP | SHOCK RESISTANCE RATING IN GRAVITATIONAL UNITS | 1000.0 |
| AFGA | OPERATING TEMP RANGE | -55.0 TO 125.0 DEG CELSIUS |
| AFJQ | STORAGE TEMP RANGE | -55.0 TO 125.0 DEG CELSIUS |
| AFSU | AVERAGE LIFE MEASUREMENT | NOT RATED |
| AGTA | BASIC SHAPE STYLE | RECTANGULAR OR SQUARE |
| AJKH | IDENTIFICATION DESIGNATOR | X243 AT 4.0MHZ-57051 |
| AKNA | INCLOSURE TYPE | HERMETICALLY SEALED |
| AMQY | INSTALLATION DESIGN | MODULE |
| BHSX | CIRCUIT CONSTRUCTION TYPE | SOLID STATE |
| BHTB | FREQUENCY PER CHANNEL | 4.0 MEGAHERTZ NOMINAL OUTPUT CHANNEL |
| BHTK | SIGNAL VOLTAGE RATING PER CHANNEL | 0.200 VOLTS NOMINAL INPUT |
| BHTL | OVERALL GAIN | 12.0 MILLIAMPERES |
| BHTL | OVERALL GAIN | 5.0 MILLIAMPERES |
| BJBN | SHOCK PULSE DURATION TIME | 1.0 MILLISECONDS |
| BJBP | CONNECTION TYPE AND LOCATION | PRINTED CIRCUIT BOTTOM |
| BJBW | CONNECTION CONTACT TYPE AND QUANTITY | 14 PRINTED CIRCUIT EXTERNAL |
| BKFB | EXTERNAL DC OPERATING VOLTAGE IN VOLTS | 5.0 MINIMUM SINGLE VOLTAGE AND 12.0 MAXIMUM SINGLE VOLTAGE |
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