The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-373-1111, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-373-1111 |
| Primary Part Number | 12554021 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.005 TO 0.005 |
| Terminal Diameter | 0.017 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN |
| Overall Diameter | 0.410 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Equivalent Resistance Value in Ohms | 30.0 MAXIMUM |
| Style Designator | ROUND BODY, WIRE LEADS |
| Drive Level Rating | 1.0 MILLIWATTS MAXIMUM |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Load Capacitance in Picofarads | 18.0 MINIMUM AND 22.0 MAXIMUM |
| Circuit Resonance | ANTIRESONANCE |
| Shunt Capacitance in Picofarads | 7.0 MAXIMUM |
| Operating Temp Range | -55.0 TO 105.0 CELSIUS DEGC |
| Specified Frequency | 12.000 MEGAHERTZ |
| 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 |
NSN 5955-01-373-1111 is a Crystal Unit,quartz, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-373-1111 has 2 manufacturer part numbers on file: 12554021 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 12554021 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).
Key specifications for 12554021: Frequency Tolerance for Operating Temp in Percent: -0.005 TO 0.005; Terminal Diameter: 0.017 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN; Overall Diameter: 0.410 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES MINIMUM IN. 14 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 5955-01-373-1111 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.