The Resistor,thermal, cataloged under National Stock Number 5905-01-028-5992, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-01-028-5992 |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — Resistor |
| Status | ACTIVE |
| Inclosure Type | ENCASED |
| Terminal Diameter | 0.020 INCHES NOMINAL IN |
| Terminal Length | 1.500 INCHES MINIMUM IN |
| Body Outside Diameter | 0.250 INCHES NOMINAL IN |
| Body Width | 0.260 INCHES MAXIMUM IN |
| Style Designator | SPHERICAL |
| Power Dissipation Constant in Milliwatts Per Deg Celsius | 5.0 |
| Zero Power Resistance | 68.000 OHMS |
| Thermal Time Constant in Seconds | 80.0 |
| Ambient Temp at Full Rated Power | 25.0 CELSIUS DEGC |
| Zero Power Resistance Tolerance in Percent at Reference Temp | -2.0 TO 2.0 |
| Reliability Indicator | NOT ESTABLISHED |
| Test Data Document | 81349-RTH06AS680G SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| Terminal Type and Quantity | 2 WIRE LEAD |
| Maximum Power Dissipation Rating | 500.00 MILLIWATTS |
| 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 |
|---|---|
| RTH06AS680G | 2/2 Government specification standardization U.S. Government activity |
| RTH06AS680J | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MILT23648-1B | 5/9 Secondary reference U.S. Government activity |
| MIL-PRF-23648/1 | 4/1 Identification reference U.S. Government activity |
NSN 5905-01-028-5992 is a Resistor,thermal, classified under FSC 5905, Resistor. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5905-01-075-6258. Verify interchangeability with system specifications before substitution.
Key specifications for 5905-01-028-5992: Inclosure Type: ENCASED; Terminal Diameter: 0.020 INCHES NOMINAL IN; Terminal Length: 1.500 INCHES MINIMUM IN; Body Outside Diameter: 0.250 INCHES NOMINAL IN. 15 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.