The Resistor,thermal, cataloged under National Stock Number 5905-00-138-3555, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Honeywell International Inc. Dba Honeywell Div Sensing & Control. Government technical data includes 15 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-138-3555 |
| Primary Part Number | 521-53BH02-203 |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Honeywell International Inc. Dba Honeywell Div Sensing & Control |
| Status | ACTIVE |
| Width Across Flats | 1.000 INCHES NOMINAL IN |
| Inclosure Type | ENCASED |
| Probe Diameter | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN |
| Body Height | 1.340 INCHES MINIMUM AND 1.400 INCHES MAXIMUM IN |
| Reference Temp in Deg Celsius | 25.0 |
| Style Designator | PROBE |
| Mounting Facility Screw Thread Series Designator | UNS |
| Probe Length | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN |
| Zero Power Resistance | 20.000 KILOHMS |
| Mounting Thread Quantity | 27 PER INCH |
| Zero Power Resistance Tolerance in Percent at Reference Temp | -15.0 TO 15.0 |
| Maximum Operating Temp | 71.0 CELSIUS DEGC |
| Mounting Facility Nominal Screw Thread Diameter | 0.125 INCHES IN |
| Reliability Indicator | NOT ESTABLISHED |
| Terminal Type and Quantity | 2 SCREW |
| 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 |
|---|---|
| 521-53BH02-203 PRIMARY | Honeywell International Inc. Dba Honeywell Div Sensing & Control (USA) |
| Reference | Meaning |
|---|---|
| 3022919-113-101 | 7/2 Vendor item drawing reference U.S. Government activity |
| K1985A | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell Div Sensing & Control |
NSN 5905-00-138-3555 is a Resistor,thermal, manufactured by Honeywell International Inc. Dba Honeywell Div Sensing & Control, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-138-3555 has 1 manufacturer part number on file: 521-53BH02-203 (Honeywell International Inc. Dba Honeywell Div Sensing & Control).
Key specifications for 521-53BH02-203: Width Across Flats: 1.000 INCHES NOMINAL IN; Inclosure Type: ENCASED; Probe Diameter: 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN; Body Height: 1.340 INCHES MINIMUM AND 1.400 INCHES MAXIMUM 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.