The Crystal Unit,quartz, cataloged under National Stock Number 5955-00-451-5529, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Frequency Electronics Inc. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-00-451-5529 |
| Primary Part Number | 5351-987-3 |
| Item Name | Crystal Unit,quartz |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Frequency Electronics Inc |
| Status | ACTIVE |
| Frequency Tolerance for Operating Temp in Percent | -0.003 TO 0.003 |
| Terminal Diameter | 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN |
| Terminal Length | 0.225 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN |
| Mode of Oscillation | FUNDAMENTAL |
| Body Width | 0.710 INCHES MINIMUM AND 0.730 INCHES MAXIMUM IN |
| Equivalent Resistance Value in Ohms | 40.0 MAXIMUM |
| Overall Thickness | 0.335 INCHES MINIMUM AND 0.355 INCHES MAXIMUM IN |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Drive Level Rating | 0.1 MILLIWATTS NOMINAL |
| Body Length | 0.755 INCHES MINIMUM AND 0.775 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminals | 0.476 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN |
| Circuit Resonance | SERIES RESONANCE |
| Operating Temp Range | -40.0 TO 71.0 CELSIUS DEGC |
| Specified Frequency | 5.000 MEGAHERTZ |
| Body Thickness | 0.297 INCHES MINIMUM AND 0.317 INCHES MAXIMUM 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 |
|---|---|
| 5351-987-3 PRIMARY | Frequency Electronics Inc (USA) |
NSN 5955-00-451-5529 is a Crystal Unit,quartz, manufactured by Frequency Electronics Inc, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-00-451-5529 has 1 manufacturer part number on file: 5351-987-3 (Frequency Electronics Inc).
Key specifications for 5351-987-3: Frequency Tolerance for Operating Temp in Percent: -0.003 TO 0.003; Terminal Diameter: 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM IN; Terminal Length: 0.225 INCHES MINIMUM AND 0.245 INCHES MAXIMUM IN; Mode of Oscillation: FUNDAMENTAL. 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 5955-00-451-5529 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.