Thermistors covered by this specification are intended for use in electronic equipment, and are used for stringent environmental and electrical requirements. Thermistors covered by this specification are unique due to the fact that these devices must be able to operate satisfactorily in military systems under the following demanding conditions: 20 Gs of high frequency vibration, 100 Gs of shock (specified pulse), and undergo moisture resistance test. In addition these military requirements are verified under a qualification system. Commercial components are not designed to withstand these military environmental conditions.