The Resistor,fixed,wire Wound,induct, cataloged under National Stock Number 5905-01-256-0141, 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 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-01-256-0141 |
| Primary Part Number | O2-WFV-239W-2-560-975 |
| Item Name | Resistor,fixed,wire Wound,induct |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -5.000 TO 5.000 |
| Body Diameter | 0.438 INCHES NOMINAL IN |
| Electrical Resistance | 560.000 OHMS |
| Inclosure Type | ENCAPSULATED |
| Mounting Hole Size | 0.219 INCHES NOMINAL IN |
| Terminal Type | TAB, SOLDER LUG |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Length | 3.062 INCHES NOMINAL IN |
| Terminal Length | 0.562 INCHES NOMINAL IN |
| Style Designator | RADIAL TERMINAL EACH END |
| Features Provided | MOUNTING HARDWARE |
| Power Dissipation Rating in Watts | 20.000 FREE AIR |
| Ambient Temp at Full Rated Power | 40.0 CELSIUS DEGC |
| Body Length | 2.000 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius at Zero Percent Rated Power | 340.0 |
| Nondefinitive Spec/std Data | IW FORM |
| Reliability Indicator | NOT ESTABLISHED |
| Test Data Document | 81349-MIL-R-15109 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.). |
| Terminal Width | 0.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| O2-WFV-239W-2-560-975 PRIMARY | Ward Leonard Ct Llc (USA) |
| P53074 | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| 02-WFV-239W-2-560-97 | C/1 Advisory reference — outside the item-of-supply concept Ward Leonard Ct Llc |
NSN 5905-01-256-0141 is a Resistor,fixed,wire Wound,induct, manufactured by Ward Leonard Ct Llc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-256-0141 has 2 manufacturer part numbers on file: O2-WFV-239W-2-560-975 (Ward Leonard Ct Llc), P53074 (Ward Leonard Ct Llc).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-265-3866. Verify interchangeability with system specifications before substitution.
Key specifications for O2-WFV-239W-2-560-975: Resistance Tolerance in Percent: -5.000 TO 5.000; Body Diameter: 0.438 INCHES NOMINAL IN; Electrical Resistance: 560.000 OHMS; Inclosure Type: ENCAPSULATED. 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.