The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-258-6981, 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 6 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-00-258-6981 |
| Primary Part Number | K42527-2 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Mounting Facility Quantity | 3 |
| Angle Between Centerlines of Mounting Holes in Deg | 120.000 |
| Mounting Method | UNTHREADED HOLE(S) |
| Mounting Hole Diameter | 0.250 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | P FORM |
| 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.). |
| 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 |
|---|---|
| K42527-2 PRIMARY | Ward Leonard Ct Llc (USA) |
| Reference | Meaning |
|---|---|
| MILR15109 | 5/9 Secondary reference U.S. Government activity |
| S1354-205 | 5/9 Secondary reference Westinghouse Electric Corp Control Business Unit |
| MIL-DTL-15109 | 4/1 Identification reference U.S. Government activity |
NSN 5905-00-258-6981 is a Resistor,variable,wire Wound,non, manufactured by Ward Leonard Ct Llc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-258-6981 has 1 manufacturer part number on file: K42527-2 (Ward Leonard Ct Llc).
1 possible match (shared part number, not a government interchangeability claim): 5905-00-393-2742. Verify interchangeability with system specifications before substitution.
Key specifications for K42527-2: Overall Height: 5.125 INCHES NOMINAL IN; Mounting Facility Quantity: 3; Angle Between Centerlines of Mounting Holes in Deg: 120.000; Mounting Method: UNTHREADED HOLE(S). 6 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.