The Oven,electrical-Electronic Compo, cataloged under National Stock Number 5955-01-372-8134, is classified within Federal Supply Class 5955 (Oscillators and Piezoelectric Crystals) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Isotemp Research Inc.. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5955-01-372-8134 |
| Primary Part Number | MC491550 |
| Item Name | Oven,electrical-Electronic Compo |
| FSC / FSG | 5955 / 59 — Oscillators and Piezoelectric Crystals |
| Manufacturer | Isotemp Research Inc. |
| Status | ACTIVE |
| Mounting Facility Type and Quantity | 4 TERMINAL |
| Heater Element Operating Voltage Rating in Volts and Type | 12.75 DC MINIMUM AND 17.25 DC MAXIMUM |
| Inclosure Type | INCLOSED |
| Precious Material | SILVER |
| Body Width | 0.980 INCHES MAXIMUM IN |
| Maintained Oven Cavity Temp Rating | 25.0 CELSIUS DEGC |
| Style Designator | SOLDER CONNECTED |
| Wire Lead Length | 3.000 INCHES NOMINAL IN |
| Component Type and Quantity Accommodated | 1 CRYSTAL |
| Precious Material and Location | CLIP SILVER |
| Body Overall Height | 0.500 INCHES MAXIMUM IN |
| Terminal Type and Quantity | 4 WIRE LEAD |
| Maintained Temp Tolerance Rating | -3.0 TO 3.0 CELSIUS DEGC |
| Operating Power Dissipating Rating in Watts | 2.0 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| MC491550 | Isotemp Research Inc. (USA) |
| Reference | Meaning |
|---|---|
| IS0-561 | 5/9 Secondary reference Isotemp Research Inc. |
| 241726-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5955-01-372-8134 is a Oven,electrical-Electronic Compo, manufactured by Isotemp Research Inc., classified under FSC 5955, Oscillators and Piezoelectric Crystals. Status: active.
NSN 5955-01-372-8134 has 1 manufacturer part number on file: MC491550 (Isotemp Research Inc.).
Key specifications for MC491550: Mounting Facility Type and Quantity: 4 TERMINAL; Heater Element Operating Voltage Rating in Volts and Type: 12.75 DC MINIMUM AND 17.25 DC MAXIMUM; Inclosure Type: INCLOSED; Precious Material: SILVER. 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.
NSN 5955-01-372-8134 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.