The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-058-1372, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cts Valpey Corporation. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-058-1372 |
| Primary Part Number | 266.270E |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Cts Valpey Corporation |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.0005 TO 0.0005 |
| Terminal Diameter | 0.026 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN |
| Terminal Length | 1.000 INCHES NOMINAL IN |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 2000.0 MAXIMUM |
| Overall Thickness | 0.270 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 0.1 MILLIWATTS NOMINAL |
| Center to Center Distance Between Terminals | 0.275 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 4.0 NOMINAL |
| Operating Temp Range | -40.0 TO 55.0 CELSIUS DEGC |
| Specified Frequency | 266.270 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 |
|---|---|
| 266.270E PRIMARY | Cts Valpey Corporation (USA) |
| Reference | Meaning |
|---|---|
| 266.270E | 5/9 Secondary reference Murata Erie North America Inc State College Opns |
| 266.270E | 5/9 Secondary reference Erie Specialty Products Inc |
| 127069-9 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5955-01-058-1372 is a Crystal Unit,quartz, manufactured by Cts Valpey Corporation, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-058-1372 has 1 manufacturer part number on file: 266.270E (Cts Valpey Corporation).
Key specifications for 266.270E: Frequency Tolerance for Operating Temp in Percent: -0.0005 TO 0.0005; Terminal Diameter: 0.026 INCHES MINIMUM AND 0.032 INCHES MAXIMUM IN; Terminal Length: 1.000 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.