The Oscillator,crystal Controlled, cataloged under National Stock Number 5955-01-688-0673, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-688-0673 |
| Item Name | Oscillator,crystal Controlled |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Status | ACTIVE |
| Environmental Protection | MOISTURE PROOF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 1994107 | D/9 Drawing number reference only U.S. Government activity |
| 1994107-154 | 5/9 Secondary reference Phaselink Utility Solutions, Llc |
| PL580-39OI | 3/9 Design control — primary reference Fox Enterprises, Inc Dba Fox Electronics |
NSN 5955-01-688-0673 is a Oscillator,crystal Controlled, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5963-01-688-0674. Verify interchangeability with system specifications before substitution.
Key specifications for 5955-01-688-0673: Environmental Protection: MOISTURE PROOF; Part Name Assigned by Controlling Agency: OSCILLATOR,CRYSTAL; End Item Identification: 5855-01-564-5450. 1 specification is 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 5955-01-688-0673 has DEMIL Code Q. 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.