The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-931-9178, 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. The record lists 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 — Oscillators and Piezoelectric Crystals (FSG 59) |
| Manufacturers | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (CAGE 00136); Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (CAGE 13499) |
| Parameter | Value |
|---|---|
| NSN | 5955-00-931-9178 |
| Primary Part Number | 289-4324-00 |
| 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 |
| 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 |
|---|---|
| 289-4324-00M20 | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| 289-4324-00 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
| Reference | Meaning |
|---|---|
| S289-4324-00 | 5/9 Secondary reference Trw Electronics and Defense Sector Rf Devices |
| ER289-4324-00 | 5/9 Secondary reference Electronic Research Company |
NSN 5955-00-931-9178 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 5955-00-931-9178 has 2 manufacturer part numbers on file: 289-4324-00M20 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled), 289-4324-00 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
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.