The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-944-7238, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5955-00-944-7238 |
| Primary Part Number | 289-7035-040M20 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.0025 TO 0.0025 AND -0.0050 TO 0.0050 |
| Terminal Diameter | 0.170 INCHES NOMINAL IN |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Mode of Oscillation | FIFTH OVERTONE AND THIRD OVERTONE |
| Body Width | 0.435 INCHES NOMINAL IN |
| Equivalent Resistance Value in Ohms | 60.0 NOMINAL |
| Style Designator | RECTANGULAR BODY, GULL WING |
| Drive Level Rating | 2.0 MILLIWATTS NOMINAL AND 1.6 MILLIWATTS MINIMUM AND 2.4 MILLIWATTS MAXIMUM |
| Center to Center Distance Between Terminals | 0.192 INCHES NOMINAL IN |
| Circuit Resonance | SERIES RESONANCE |
| Shunt Capacitance in Picofarads | 4.0 MAXIMUM |
| Operating Temp Range | -55.0 TO 85.0 CELSIUS DEGC |
| Material | GLASS COVER HOLDER |
| Specified Frequency | 99.450 MEGAHERTZ |
| Body Thickness | 0.183 INCHES NOMINAL IN |
| 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 |
|---|---|
| 289-7035-040M20 | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| Reference | Meaning |
|---|---|
| 289-7035-040M20 | 3/9 Design control — primary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5955-00-944-7238 is a Crystal Unit,quartz, manufactured by Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-944-7238 has 1 manufacturer part number on file: 289-7035-040M20 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).
Key specifications for 289-7035-040M20: Frequency Tolerance for Operating Temp in Percent: -0.0025 TO 0.0025 AND -0.0050 TO 0.0050; Terminal Diameter: 0.170 INCHES NOMINAL IN; Terminal Length: 1.500 INCHES NOMINAL IN; Mode of Oscillation: FIFTH OVERTONE AND THIRD OVERTONE. 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.
NSN 5955-00-944-7238 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.