The Resistor,thermal, cataloged under National Stock Number 5905-00-778-6429, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Piezothermx Corporation. Government technical data includes 30 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-00-778-6429 |
| Primary Part Number | 21TE2 |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Piezothermx Corporation |
| Status | ACTIVE |
| Temp Points for Resistance Readings at Zero Power | -55.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | -30.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 20.0 CELSIUS FOURTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 0.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 50.0 CELSIUS FIFTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 200.0 CELSIUS TENTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 70.0 CELSIUS SIXTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 100.0 CELSIUS SEVENTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 130.0 CELSIUS EIGHTH RESISTANCE-TEMPERATURE POINT DEGC |
| Temp Points for Resistance Readings at Zero Power | 160.0 CELSIUS NINTH RESISTANCE-TEMPERATURE POINT DEGC |
| Inclosure Type | ENCAPSULATED |
| Terminal Diameter | 0.010 INCHES NOMINAL IN |
| Resistance Tolerance at a Specified Temp in Percent | -10.2 TO 10.2 FOURTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -13.0 TO 13.0 FIFTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -13.0 TO 13.0 THIRD RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -14.5 TO 14.5 SIXTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -19.0 TO 19.0 SEVENTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -21.0 TO 21.0 SECOND RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -22.0 TO 22.0 EIGHTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -25.0 TO 25.0 FIRST RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -26.3 TO 26.3 NINTH RESISTANCE-TEMPERATURE POINT |
| Resistance Tolerance at a Specified Temp in Percent | -28.1 TO 28.1 TENTH RESISTANCE-TEMPERATURE POINT |
| Terminal Length | 2.000 INCHES MINIMUM IN |
| Zero Power Resistance at Specified Temp | 1.2 KILOHMS SECOND RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 1.3 OHMS TENTH RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 125.0 OHMS FOURTH RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 2.6 OHMS NINTH RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 21.6 OHMS SIXTH RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 327.4 OHMS THIRD RESISTANCE-TEMPERATURE POINT |
| Zero Power Resistance at Specified Temp | 4.7 OHMS EIGHTH RESISTANCE-TEMPERATURE POINT |
| 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 |
|---|---|
| 21TE2 PRIMARY | Piezothermx Corporation (USA) |
| Reference | Meaning |
|---|---|
| 21TE2 | 5/9 Secondary reference Elscott Corp |
| 21TE2 | 5/9 Secondary reference U.S. Government activity |
NSN 5905-00-778-6429 is a Resistor,thermal, manufactured by Piezothermx Corporation, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-778-6429 has 1 manufacturer part number on file: 21TE2 (Piezothermx Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5905-00-806-0993. Verify interchangeability with system specifications before substitution.
Key specifications for 21TE2: Temp Points for Resistance Readings at Zero Power: -55.0 CELSIUS FIRST RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: -30.0 CELSIUS SECOND RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: 20.0 CELSIUS FOURTH RESISTANCE-TEMPERATURE POINT DEGC; Temp Points for Resistance Readings at Zero Power: 0.0 CELSIUS THIRD RESISTANCE-TEMPERATURE POINT DEGC. 30 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.