The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-357-1091, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Keysight Technologies Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-357-1091 |
| Primary Part Number | 0410-1561 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Terminal Length | 0.500 INCHES NOMINAL IN |
| Overall Thickness | 0.062 INCHES NOMINAL IN |
| Style Designator | RECTANGULAR BODY, PIN TERMINALS |
| Drive Level Rating | 0.001 MILLIWATTS NOMINAL |
| Body Length | 0.156 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Operating Temp Range | -40.0 TO 85.0 CELSIUS DEGC |
| Material | CERAMIC COVER HOLDER |
| Specified Frequency | 444.440 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 |
|---|---|
| 0410-1561 PRIMARY | Keysight Technologies Inc (USA) |
| CX-1H-444.44KHZ(A) | Statek Corp (USA) |
| Reference | Meaning |
|---|---|
| 0410-1561 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 0410-1561 | 3/9 Design control — primary reference Keysight Technologies, Inc. |
NSN 5955-01-357-1091 is a Crystal Unit,quartz, manufactured by Keysight Technologies Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-357-1091 has 2 manufacturer part numbers on file: 0410-1561 (Keysight Technologies Inc), CX-1H-444.44KHZ(A) (Statek Corp).
Key specifications for 0410-1561: Terminal Length: 0.500 INCHES NOMINAL IN; Overall Thickness: 0.062 INCHES NOMINAL IN; Style Designator: RECTANGULAR BODY, PIN TERMINALS; Overall Length: 0.656 INCHES NOMINAL IN. 9 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 5955-01-357-1091 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.