The Crystal Unit Set,quartz, cataloged under National Stock Number 5955-01-021-4655, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Cts Valpey Corporation. Government technical data includes 2 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-021-4655 |
| Primary Part Number | 22080-079 |
| Item Name | Crystal Unit Set,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Cts Valpey Corporation |
| Status | ACTIVE |
| Component Quantity | 3 |
| Specification/standard Data | 01220-22080-079 MANUFACTURERS SPECIFICATION |
| 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 |
|---|---|
| 22080-079 | Cts Valpey Corporation (USA) |
| Reference | Meaning |
|---|---|
| 22080-079 | 5/9 Secondary reference Inficon Edc Inc. |
| 22080-079 | 3/9 Design control — primary reference Systron-Donner Corp Microwave/instrument Div |
NSN 5955-01-021-4655 is a Crystal Unit Set,quartz, manufactured by Cts Valpey Corporation, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-021-4655 has 1 manufacturer part number on file: 22080-079 (Cts Valpey Corporation).
Key specifications for 22080-079: Component Quantity: 3; Specification/standard Data: 01220-22080-079 MANUFACTURERS SPECIFICATION; Special Features: FREQUENCY 6.5 MHZ MHz. 2 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.