The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-045-8167, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-045-8167 |
| Primary Part Number | Y-0651 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 |
| Terminal Diameter | 0.029 INCHES NOMINAL IN |
| Terminal Length | 0.750 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.715 INCHES MINIMUM AND 0.722 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 280.0 MAXIMUM |
| Overall Thickness | 0.340 INCHES MINIMUM AND 0.345 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, WIRE LEADS |
| Drive Level Rating | 8.0 MILLIWATTS MINIMUM AND 12.0 MILLIWATTS MAXIMUM |
| Center to Center Distance Between Terminals | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Operating Temp Range | -40.0 TO 75.0 CELSIUS DEGC |
| Specified Frequency | 1579.000 KILOHERTZ |
| Body Thickness | 0.310 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| 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 |
|---|---|
| Y-0651 | Cts Valpey Corporation (USA) |
| Y-0651 | Wenzel International Inc Div Croven Crystals (CAN) |
| Y-0651 PRIMARY | L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA) |
| Reference | Meaning |
|---|---|
| Y-0651 | 5/9 Secondary reference Murata Erie North America Inc State College Opns |
NSN 5955-01-045-8167 is a Crystal Unit,quartz, manufactured by L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-045-8167 has 3 manufacturer part numbers on file: Y-0651 (Cts Valpey Corporation), Y-0651 (Wenzel International Inc Div Croven Crystals), Y-0651 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications).
Key specifications for Y-0651: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005; Terminal Diameter: 0.029 INCHES NOMINAL IN; Terminal Length: 0.750 INCHES MINIMUM IN; Mode of Oscillation: FUNDAMENTAL. 15 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.