The Resistor,fixed,wire Wound, cataloged under National Stock Number 5905-01-185-5986, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Vishay Intertechnology, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-185-5986 |
| Primary Part Number | A2550-LR-1000OHMSPORM0.02PCT |
| Item Name | Resistor,fixed,wire Wound |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Vishay Intertechnology, Inc. |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -0.020 TO 0.020 |
| Temp Coefficient of Resistance in Ppm Per Deg Celsius | -10.0 TO 10.0 |
| Body Diameter | 0.250 INCHES NOMINAL IN |
| Electrical Resistance | 1.000 KILOHMS |
| Inclosure Type | ENCAPSULATED |
| Terminal Type | WIRE LEAD |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Reactance Characteristic | NONINDUCTIVE |
| Temp Range of Temp Coefficient in Deg Celsius | -55.0 TO 125.0 |
| Style Designator | AXIAL TERMINALS ONE END |
| Power Dissipation Rating in Watts | 0.250 FREE AIR |
| Ambient Temp at Full Rated Power | 125.0 CELSIUS DEGC |
| Body Length | 0.500 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius at Zero Percent Rated Power | 145.0 |
| Reliability Indicator | NOT ESTABLISHED |
| Cubic Measure | 0.005 CUBIC INCHES |
| 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 |
|---|---|
| A2550-LR-1000OHMSPORM0.02PCT PRIMARY | Vishay Intertechnology, Inc. (USA) |
| Reference | Meaning |
|---|---|
| LR312-1001Q | 5/9 Secondary reference Jordan Electric Co Div of Gro-Con |
| LR-12-1001Q | 5/9 Secondary reference Jordan Electric Co Div of Gro-Con |
NSN 5905-01-185-5986 is a Resistor,fixed,wire Wound, manufactured by Vishay Intertechnology, Inc., classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-185-5986 has 1 manufacturer part number on file: A2550-LR-1000OHMSPORM0.02PCT (Vishay Intertechnology, Inc.).
Key specifications for A2550-LR-1000OHMSPORM0.02PCT: Resistance Tolerance in Percent: -0.020 TO 0.020; Temp Coefficient of Resistance in Ppm Per Deg Celsius: -10.0 TO 10.0; Body Diameter: 0.250 INCHES NOMINAL IN; Electrical Resistance: 1.000 KILOHMS. 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.