The Resistor,thermal, cataloged under National Stock Number 5905-01-033-7939, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Texas Instruments Incorporated. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-033-7939 |
| Primary Part Number | TM1/4-120 |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Texas Instruments Incorporated |
| Status | ACTIVE |
| Terminal Diameter | 0.025 INCHES NOMINAL IN |
| Terminal Length | 1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.185 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Reference Temp in Deg Celsius | 25.0 |
| Style Designator | ROD |
| Zero Power Resistance | 120.000 OHMS |
| Thermal Time Constant in Seconds | 54.0 |
| Ambient Temp at Full Rated Power | 100.0 CELSIUS DEGC |
| Zero Power Resistance Tolerance in Percent at Reference Temp | -10.0 TO 10.0 |
| Maximum Operating Temp | 150.0 CELSIUS DEGC |
| Body Length | 0.570 INCHES MINIMUM AND 0.600 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Terminal Type and Quantity | 2 WIRE LEAD |
| Maximum Power Dissipation Rating | 250.00 MILLIWATTS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5905-01-033-7939 is a Resistor,thermal, manufactured by Texas Instruments Incorporated, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-033-7939 has 2 manufacturer part numbers on file: TM1/4-120 (Texas Instruments Incorporated), 63G5583 (Zenith Electronics Corporation).
Key specifications for TM1/4-120: Terminal Diameter: 0.025 INCHES NOMINAL IN; Terminal Length: 1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN; Body Outside Diameter: 0.185 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Reference Temp in Deg Celsius: 25.0. 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 5905-01-033-7939 has DEMIL Code B. 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.