The Resistor,thermal, cataloged under National Stock Number 5905-01-044-9299, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Shallcross Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-01-044-9299 |
| Primary Part Number | R1803-7 |
| Item Name | Resistor,thermal |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Shallcross Inc |
| Status | ACTIVE |
| Inclosure Type | ENCAPSULATED |
| Terminal Diameter | 0.020 INCHES NOMINAL IN |
| Terminal Length | 2.000 INCHES NOMINAL IN |
| Body Outside Diameter | 0.312 INCHES MAXIMUM IN |
| Reference Temp in Deg Celsius | 25.0 |
| Style Designator | ROD |
| Zero Power Resistance | 2.500 KILOHMS |
| Thermal Time Constant in Seconds | 60.0 |
| Ambient Temp at Full Rated Power | 25.0 CELSIUS DEGC |
| Zero Power Resistance Tolerance in Percent at Reference Temp | -5.0 TO 5.0 |
| Maximum Operating Temp | 275.0 CELSIUS DEGC |
| Body Length | 1.000 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Terminal Type and Quantity | 2 WIRE LEAD |
| Maximum Power Dissipation Rating | 5.00 WATTS |
| 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 |
|---|---|
| R1803-7 | Shallcross Inc (USA) |
| Reference | Meaning |
|---|---|
| 219843-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5905-01-044-9299 is a Resistor,thermal, manufactured by Shallcross Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-044-9299 has 1 manufacturer part number on file: R1803-7 (Shallcross Inc).
1 possible match (shared part number, not a government interchangeability claim): 5945-01-449-3150. Verify interchangeability with system specifications before substitution.
Key specifications for R1803-7: Inclosure Type: ENCAPSULATED; Terminal Diameter: 0.020 INCHES NOMINAL IN; Terminal Length: 2.000 INCHES NOMINAL IN; Body Outside Diameter: 0.312 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.