The Resistor,thermal, cataloged under National Stock Number 5905-01-079-3291, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Measurement Specialties, Inc.. Government technical data includes 16 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-079-3291 |
| Primary Part Number | SS20-I43A74/7 |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Measurement Specialties, Inc. |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES NOMINAL IN |
| Inclosure Type | ENCASED |
| Terminal Diameter | 0.010 INCHES NOMINAL IN |
| Probe Diameter | 0.125 INCHES NOMINAL IN |
| Terminal Length | 11.000 INCHES MINIMUM AND 13.000 INCHES MAXIMUM IN |
| Body Outside Diameter | 0.250 INCHES NOMINAL IN |
| Reference Temp in Deg Celsius | 25.0 |
| Style Designator | BEAD IN MACHINE SCREW |
| Power Dissipation Constant in Milliwatts Per Deg Celsius | 3.0 |
| Probe Length | 0.170 INCHES NOMINAL IN |
| Zero Power Resistance | 50.300 KILOHMS |
| Thermal Time Constant in Seconds | 6.0 |
| Zero Power Resistance Tolerance in Percent at Reference Temp | -12.0 TO 12.0 |
| Body Length | 0.260 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Terminal Type and Quantity | 2 WIRE LEAD |
| 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 |
|---|---|
| SS20-I43A74/7 | Measurement Specialties, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 580R553H02 | 3/2 Design control — primary reference U.S. Government activity |
| SS20-I43A74/7 | 5/9 Secondary reference U.S. Government activity |
| K1133A | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Sensing & Control |
NSN 5905-01-079-3291 is a Resistor,thermal, manufactured by Measurement Specialties, Inc., classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-079-3291 has 1 manufacturer part number on file: SS20-I43A74/7 (Measurement Specialties, Inc.).
Key specifications for SS20-I43A74/7: Width Across Flats: 0.250 INCHES NOMINAL IN; Inclosure Type: ENCASED; Terminal Diameter: 0.010 INCHES NOMINAL IN; Probe Diameter: 0.125 INCHES NOMINAL IN. 16 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.