The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-028-2579, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-028-2579 |
| Primary Part Number | 289-7208-280 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.001 TO 0.001 AND -0.0015 TO 0.0015 |
| Terminal Diameter | 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN |
| Overall Diameter | 0.400 INCHES MAXIMUM IN |
| Terminal Length | 0.500 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN |
| Mode of Oscillation | FIFTH OVERTONE |
| Equivalent Resistance Value in Ohms | 60.0 MAXIMUM |
| Style Designator | HAT TYPE, 3 WIRE LEADS |
| Diameter | 0.305 INCHES MINIMUM AND 0.335 INCHES MAXIMUM IN |
| Drive Level Rating | 0.5 MILLIWATTS NOMINAL |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 3.75 MINIMUM AND 5.25 MAXIMUM |
| Operating Temp Range | +10.0 TO 40.0 CELSIUS AND -30.0 TO 60.0 CELSIUS DEGC |
| Specified Frequency | 101.8562 MEGAHERTZ |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 289-7208-280 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| 289-7208-280 | Wenzel International Inc Div Croven Crystals (CAN) |
| 289-7208-280 | Bliley Technologies Inc (USA) |
| 289-7208-280 | Cts Valpey Corporation (USA) |
NSN 5955-01-028-2579 is a Crystal Unit,quartz, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-028-2579 has 4 manufacturer part numbers on file: 289-7208-280 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 289-7208-280 (Wenzel International Inc Div Croven Crystals), 289-7208-280 (Bliley Technologies Inc), 289-7208-280 (Cts Valpey Corporation).
Key specifications for 289-7208-280: Frequency Tolerance for Operating Temp in Percent: -0.001 TO 0.001 AND -0.0015 TO 0.0015; Terminal Diameter: 0.016 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN; Overall Diameter: 0.400 INCHES MAXIMUM IN; Terminal Length: 0.500 INCHES MINIMUM AND 0.830 INCHES MAXIMUM 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 5955-01-028-2579 has DEMIL Code D. 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.