The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-212-0255, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Telephonics Corp. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5955-01-212-0255 |
| Primary Part Number | C235A374-1 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Telephonics Corp |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 AND -0.0010 TO 0.0010 |
| Terminal Diameter | 0.0179 INCHES NOMINAL IN |
| Terminal Length | 0.160 INCHES NOMINAL IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.437 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 25.0 MAXIMUM |
| Overall Thickness | 0.213 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 5.0 MILLIWATTS NOMINAL AND 4.0 MILLIWATTS MINIMUM AND 6.0 MILLIWATTS MAXIMUM |
| Center to Center Distance Between Terminals | 0.192 INCHES NOMINAL IN |
| Load Capacitance in Picofarads | 33.0 NOMINAL |
| Circuit Resonance | ANTIRESONANCE |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Operating Temp Range | -55.0 TO 105.0 CELSIUS AND -55.0 TO 125.0 CELSIUS DEGC |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 15.000 MEGAHERTZ |
| Body Thickness | 0.195 INCHES MAXIMUM IN |
| 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 |
|---|---|
| 174-2-1 15.000000MHZ | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| 80AX1260-2 | Power Control Devices, Inc. (USA) |
| VM6-15.000000MHZ | Cts Valpey Corporation (USA) |
| C235A374-1 PRIMARY | Telephonics Corp (USA) |
| C235A374-1 | Cts Valpey Corporation (USA) |
| Reference | Meaning |
|---|---|
| C235A374-1 | 5/9 Secondary reference Erie Specialty Products Inc |
| 80AX1260-2 | 5/9 Secondary reference Frequency Control Products Inc |
| C235A374-1 | 5/9 Secondary reference Murata Erie North America Inc State College Opns |
NSN 5955-01-212-0255 is a Crystal Unit,quartz, manufactured by Telephonics Corp, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-212-0255 has 5 manufacturer part numbers on file: 174-2-1 15.000000MHZ (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 80AX1260-2 (Power Control Devices, Inc.), VM6-15.000000MHZ (Cts Valpey Corporation), C235A374-1 (Telephonics Corp), C235A374-1 (Cts Valpey Corporation).
Key specifications for C235A374-1: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005 AND -0.0010 TO 0.0010; Terminal Diameter: 0.0179 INCHES NOMINAL IN; Terminal Length: 0.160 INCHES NOMINAL IN; Mode of Oscillation: FUNDAMENTAL. 17 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 5955-01-212-0255 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.