The Resistor,fixed,wire Wound, cataloged under National Stock Number 5905-00-259-3089, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ward Leonard Ct Llc. Government technical data includes 18 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5905-00-259-3089 |
| Primary Part Number | WL57-291 |
| Item Name | Resistor,fixed,wire Wound |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -10.000 TO 10.000 |
| Electrical Resistance | 7.300 OHMS |
| Inclosure Type | ENCASED |
| Mounting Hole Size | 0.438 INCHES NOMINAL IN |
| Terminal Type | TAB W/SCREW |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 6.875 INCHES NOMINAL IN |
| Body Width | 3.375 INCHES NOMINAL IN |
| Body Height | 0.438 INCHES NOMINAL IN |
| Reactance Characteristic | NONINDUCTIVE |
| Style Designator | TERMINALS ONE SIDE |
| Power Dissipation Rating in Watts | 90.000 FREE AIR |
| Ambient Temp at Full Rated Power | 50.0 CELSIUS DEGC |
| Body Length | 7.750 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius at Zero Percent Rated Power | 350.0 |
| Nondefinitive Spec/std Data | IW FORM |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 2.000 INCHES MINIMUM AND 2.500 INCHES MAXIMUM IN |
| Reliability Indicator | NOT ESTABLISHED |
| Test Data Document | 81349-MILR15109B SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| 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 |
|---|---|
| WL57-291 PRIMARY | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| MILR15109 | 5/9 Secondary reference U.S. Government activity |
| MIL-DTL-15109 | 4/1 Identification reference U.S. Government activity |
| 57-291 | 5/9 Secondary reference U.S. Government activity |
NSN 5905-00-259-3089 is a Resistor,fixed,wire Wound, manufactured by Ward Leonard Ct Llc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-259-3089 has 1 manufacturer part number on file: WL57-291 (Ward Leonard Ct Llc).
Key specifications for WL57-291: Resistance Tolerance in Percent: -10.000 TO 10.000; Electrical Resistance: 7.300 OHMS; Inclosure Type: ENCASED; Mounting Hole Size: 0.438 INCHES NOMINAL IN. 18 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.