The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-345-5019, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is The Boeing Company Div Defense. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-345-5019 |
| Primary Part Number | 74B059164-201 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 |
| Terminal Diameter | 0.010 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.275 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 45.0 MAXIMUM |
| Overall Thickness | 0.130 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, WIRE LEADS |
| Drive Level Rating | 1.0 MILLIWATTS NOMINAL |
| Center to Center Distance Between Terminals | 0.142 INCHES MINIMUM AND 0.158 INCHES MAXIMUM IN |
| Load Capacitance in Picofarads | 20.0 NOMINAL |
| Circuit Resonance | ANTIRESONANCE |
| Shunt Capacitance in Picofarads | 7.0 NOMINAL |
| Operating Temp Range | -20.0 TO 70.0 CELSIUS DEGC |
| Specified Frequency | 12.000 MEGAHERTZ |
| Body Thickness | 0.100 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| MM80N1B2A-12.000MHZ | Monitor Products Co. Inc. Dba Monitor Products Co. Inc. (USA) |
| 74B059164-201 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5955-01-345-5019 is a Crystal Unit,quartz, manufactured by The Boeing Company Div Defense, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-345-5019 has 2 manufacturer part numbers on file: MM80N1B2A-12.000MHZ (Monitor Products Co. Inc. Dba Monitor Products Co. Inc.), 74B059164-201 (The Boeing Company Div Defense).
Key specifications for 74B059164-201: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005; Terminal Diameter: 0.010 INCHES MINIMUM AND 0.014 INCHES MAXIMUM IN; Terminal Length: 0.500 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.
NSN 5955-01-345-5019 has DEMIL Code D. 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.