The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-199-5590, 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 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5955-01-199-5590 |
| Primary Part Number | SM-A-884597-1 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Cts Inc |
| Status | ACTIVE |
| Distance Between Center Terminal and Outside Terminal Centers | 0.100 INCHES NOMINAL IN |
| Frequency Tolerance for Operating Temp in Percent | -0.002 TO 0.002 |
| Terminal Diameter | 0.0175 INCHES MINIMUM AND 0.0205 INCHES MAXIMUM IN |
| Second Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Overall Diameter | 0.620 INCHES MAXIMUM IN |
| Terminal Length | 0.281 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 900.0 MAXIMUM |
| Style Designator | HAT TYPE, 5 WIRE LEADS |
| Diameter | 0.515 INCHES MAXIMUM IN |
| Drive Level Rating | 5.0 MILLIWATTS NOMINAL |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 2.0 NOMINAL |
| Operating Temp Range | -45.6 TO 71.0 CELSIUS DEGC |
| Specified Frequency | 4.608 MEGAHERTZ |
| 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 |
|---|---|
| SM-A-884597-1 PRIMARY | Cts Inc (USA) |
| SM-A-884597-1 PRIMARY | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| BK5W4.608MHZ | Bliley Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| SM-A-884597-1 | 7/2 Vendor item drawing reference U.S. Government activity |
| SM-A-884597-1 | 5/9 Secondary reference Inficon Edc Inc. |
NSN 5955-01-199-5590 is a Crystal Unit,quartz, manufactured by Cts Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-199-5590 has 3 manufacturer part numbers on file: SM-A-884597-1 (Cts Inc), SM-A-884597-1 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), BK5W4.608MHZ (Bliley Technologies Inc).
Key specifications for SM-A-884597-1: Distance Between Center Terminal and Outside Terminal Centers: 0.100 INCHES NOMINAL IN; Frequency Tolerance for Operating Temp in Percent: -0.002 TO 0.002; Terminal Diameter: 0.0175 INCHES MINIMUM AND 0.0205 INCHES MAXIMUM IN; Second Center to Center Distance Between Terminals: 0.200 INCHES NOMINAL IN. 16 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.