The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-00-009-4533, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Emcore Corporation Div Concord Division. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-00-009-4533 |
| Primary Part Number | R2543 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Emcore Corporation Div Concord Division |
| Status | ACTIVE |
| Body Diameter | 0.250 INCHES NOMINAL IN |
| Electrical Resistance Per Section | 20.0 OHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 150.0 SINGLE SECTION |
| Section Quantity | 1 |
| Body Style | CYLINDRICAL |
| Overall Diameter | 0.250 INCHES NOMINAL IN |
| Terminal Length | 0.187 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -100.0 TO 100.0 SINGLE SECTION |
| Terminal Location | REAR END |
| Center to Center Distance Between Center Terminal and Outside Terminal | 0.100 INCHES NOMINAL IN |
| Actuator Type | FLUSH DRIVE WITH SLOT-HOLE |
| Body Length | 0.180 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 0.5 FREE AIR SINGLE SECTION |
| Reliability Indicator | NOT ESTABLISHED |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 PIN |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 85.0 SINGLE SECTION |
| 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 |
|---|---|
| R2543 PRIMARY | Emcore Corporation Div Concord Division (USA) |
| Reference | Meaning |
|---|---|
| 3329H1-100 | 5/9 Secondary reference U.S. Government activity |
| 421-3874 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5905-00-009-4533 is a Resistor,variable,nonwire Wound,, manufactured by Emcore Corporation Div Concord Division, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-009-4533 has 1 manufacturer part number on file: R2543 (Emcore Corporation Div Concord Division).
1 possible match (shared part number, not a government interchangeability claim): 5905-00-439-5371. Verify interchangeability with system specifications before substitution.
Key specifications for R2543: Body Diameter: 0.250 INCHES NOMINAL IN; Electrical Resistance Per Section: 20.0 OHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 150.0 SINGLE SECTION; Section Quantity: 1. 19 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.