The Crystal Unit,quartz, cataloged under National Stock Number 5955-01-005-9851, 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 6 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-005-9851 |
| Primary Part Number | 87504000 |
| 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 |
| Terminal Diameter | 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN |
| Mode of Oscillation | THIRD OVERTONE |
| Style Designator | OVAL BODY, PIN TERMINALS |
| Body Length | 0.775 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminals | 0.478 INCHES NOMINAL IN |
| Specified Frequency | 30.000 MEGAHERTZ |
| 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 |
|---|---|
| 87504000 | Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled (USA) |
| Reference | Meaning |
|---|---|
| 87504000 | 5/9 Secondary reference Electronic Research Company |
| 87504000 | 3/2 Design control — primary reference U.S. Government activity |
| 87504000 | 5/9 Secondary reference Piezo Crystal Co |
| 87504000 | 5/9 Secondary reference Pagliuso Engineering Co |
NSN 5955-01-005-9851 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 5955-01-005-9851 has 1 manufacturer part number on file: 87504000 (Microsemi Corp. - High Performance Timing Dba Vectron International- Cancelled).
Key specifications for 87504000: Terminal Diameter: 0.046 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN; Mode of Oscillation: THIRD OVERTONE; Style Designator: OVAL BODY, PIN TERMINALS; Overall Length: 1.023 INCHES MAXIMUM IN. 6 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.