The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-183-6451, 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 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-183-6451 |
| Primary Part Number | VM6-5-542.550KHZ |
| 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 | -0.010 TO 0.010 |
| Terminal Diameter | 0.017 INCHES NOMINAL IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 20.0 NOMINAL |
| Overall Thickness | 0.183 INCHES NOMINAL IN |
| Style Designator | OVAL BODY, WIRE LEADS |
| Drive Level Rating | 5.0 MILLIWATTS MAXIMUM |
| Center to Center Distance Between Terminals | 0.192 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Operating Temp Range | -20.0 TO 70.0 CELSIUS DEGC |
| Specified Frequency | 542.550 KILOHERTZ |
| 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 |
|---|---|
| VM6-5-542.550KHZ | Cts Valpey Corporation (USA) |
| 2865W15P002 | Cts Valpey Corporation (USA) |
| 2865W15P002 | Bliley Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 2865W15P002 | 5/9 Secondary reference Murata Erie North America Inc State College Opns |
| 2865W15P002 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5955-01-183-6451 is a Crystal Unit,quartz, manufactured by Cts Valpey Corporation, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-183-6451 has 3 manufacturer part numbers on file: VM6-5-542.550KHZ (Cts Valpey Corporation), 2865W15P002 (Cts Valpey Corporation), 2865W15P002 (Bliley Technologies Inc).
Key specifications for VM6-5-542.550KHZ: Frequency Tolerance for Operating Temp in Percent: -0.010 TO 0.010; Terminal Diameter: 0.017 INCHES NOMINAL IN; Terminal Length: 0.500 INCHES MINIMUM 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.
NSN 5955-01-183-6451 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.