The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-722-9496, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Stromberg-Carlson Corp a Plessey Telecommunications Co. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-722-9496 |
| Primary Part Number | 666211-013 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Stromberg-Carlson Corp a Plessey Telecommunications Co |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 |
| Terminal Diameter | 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN |
| Terminal Length | 1.500 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.535 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 290.0 MAXIMUM |
| Overall Thickness | 0.237 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 | 0.267 INCHES MINIMUM AND 0.283 INCHES MAXIMUM IN |
| Load Capacitance in Picofarads | 31.5 MINIMUM AND 32.5 MAXIMUM |
| Circuit Resonance | ANTIRESONANCE |
| Shunt Capacitance in Picofarads | 3.5 MINIMUM AND 4.5 MAXIMUM |
| Operating Temp Range | -40.0 TO 85.0 CELSIUS DEGC |
| Specified Frequency | 1.941 MEGAHERTZ |
| Body Thickness | 0.210 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 |
|---|---|
| 666211-013 | Stromberg-Carlson Corp a Plessey Telecommunications Co (USA) |
| SM-C-500912-2 | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| SM-C-500912-2 | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| SM-C-500912-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5955-00-722-9496 is a Crystal Unit,quartz, manufactured by Stromberg-Carlson Corp a Plessey Telecommunications Co, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-722-9496 has 3 manufacturer part numbers on file: 666211-013 (Stromberg-Carlson Corp a Plessey Telecommunications Co), SM-C-500912-2 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), SM-C-500912-2 (Raytheon Company).
Key specifications for 666211-013: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005; Terminal Diameter: 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN; Terminal Length: 1.500 INCHES MINIMUM IN; Mode of Oscillation: FUNDAMENTAL. 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.