The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-159-7563, 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 Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-159-7563 |
| Primary Part Number | A44730-1 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Cts Inc |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.012 TO 0.012 |
| Terminal Diameter | 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN |
| Terminal Length | 0.248 INCHES MAXIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.725 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 100000.0 NOMINAL |
| Overall Thickness | 0.352 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 0.1 MILLIWATTS NOMINAL |
| Body Length | 1.526 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminals | 0.478 INCHES MINIMUM AND 0.494 INCHES MAXIMUM IN |
| Circuit Resonance | SERIES RESONANCE |
| Operating Temp Range | +0.0 TO 110.0 CELSIUS DEGC |
| Specified Frequency | 19.200 KILOHERTZ |
| Body Thickness | 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 |
|---|---|
| A44730-1 | Cts Inc (USA) |
| A44730-1 | Power Control Devices, Inc. (USA) |
| Reference | Meaning |
|---|---|
| A44730-1 | 5/9 Secondary reference Bulova Technologies L.l.c. Dba Environmental Systems & Svcs |
| A44730-1 | 5/2 Secondary reference U.S. Government activity |
| A44730-1 | 3/9 Design control — primary reference Dar Electronics Inc Dba National Radio Co |
| EM148-1 | 5/9 Secondary reference Trw Electronics and Defense Sector Rf Devices |
NSN 5955-00-159-7563 is a Crystal Unit,quartz, manufactured by Cts Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-159-7563 has 2 manufacturer part numbers on file: A44730-1 (Cts Inc), A44730-1 (Power Control Devices, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-430-2773. Verify interchangeability with system specifications before substitution.
Key specifications for A44730-1: Frequency Tolerance for Operating Temp in Percent: -0.012 TO 0.012; Terminal Diameter: 0.048 INCHES MINIMUM AND 0.052 INCHES MAXIMUM IN; Terminal Length: 0.248 INCHES MAXIMUM 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.