The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-541-6711, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Eldec Aerospace Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-541-6711 |
| Primary Part Number | CY25-4M0A |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Eldec Aerospace Corp |
| Status | ACTIVE |
| Inclosure Type | HERMETICALLY SEALED |
| Basic Shape Style | RECTANGULAR OR SQUARE |
| Operating Temp Range | -55.0 TO 125.0 CELSIUS DEGC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CY25-4M0A PRIMARY | Eldec Aerospace Corp (USA) |
| QT78HCD10M | Q-Tech Corp Dba Q-Tech Corp (USA) |
| Reference | Meaning |
|---|---|
| CY25 | 7/2 Vendor item drawing reference Eldec Aerospace Corp |
NSN 5955-01-541-6711 is a Oscillator,crystal Controlled, manufactured by Eldec Aerospace Corp, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-541-6711 has 2 manufacturer part numbers on file: CY25-4M0A (Eldec Aerospace Corp), QT78HCD10M (Q-Tech Corp Dba Q-Tech Corp).
Key specifications for CY25-4M0A: Overall Height: 0.185 INCHES MAXIMUM IN; Inclosure Type: HERMETICALLY SEALED; Overall Length: 0.540 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN; Overall Width: 0.340 INCHES MINIMUM AND 0.360 INCHES MAXIMUM IN. 3 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 5955-01-541-6711 has DEMIL Code B. 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.