The Oven,electrical-Electronic Compo, cataloged under National Stock Number 5955-00-987-6637, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5955-00-987-6637 |
| Item Name | Oven,electrical-Electronic Compo |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 1 PLUG-IN TERMINAL(S) |
| Heater Element Operating Voltage Rating in Volts and Type | 115.0 AC NOMINAL |
| Inclosure Type | INCLOSED |
| Body Width | 1.875 INCHES NOMINAL IN |
| Maintained Oven Cavity Temp Rating | 80.0 CELSIUS DEGC |
| Style Designator | OCTAL SOCKET |
| Component Type and Quantity Accommodated | 1 CRYSTAL |
| Crystal Holder Designator | HC-13/U |
| Temp Control Device Type | THERMOSTAT |
| Maximum Warm Up Time in Minutes | 7.0 |
| Body Overall Height | 4.000 INCHES NOMINAL IN |
| Terminal Type and Quantity | 8 STANDARD TUBE BASE |
| Maintained Temp Tolerance Rating | -2.0 TO 2.0 CELSIUS DEGC |
| Operating Power Dissipating Rating in Watts | 15.0 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| PC2-56-2 | 5/9 Secondary reference Oak Crystal Inc |
| D34746-2 | 3/9 Design control — primary reference Dar Electronics Inc Dba National Radio Co |
| K00000027-1 | 5/9 Secondary reference U.S. Government activity |
NSN 5955-00-987-6637 is a Oven,electrical-Electronic Compo, classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5420-01-679-8772. Verify interchangeability with system specifications before substitution.
Key specifications for 5955-00-987-6637: Mounting Facility Type and Quantity: 1 PLUG-IN TERMINAL(S); Overall Height: 4.500 INCHES NOMINAL IN; Heater Element Operating Voltage Rating in Volts and Type: 115.0 AC NOMINAL; Inclosure Type: INCLOSED. 14 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.