The Resistor,fixed,wire Wound, cataloged under National Stock Number 5905-00-100-4990, 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 12 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-100-4990 |
| Primary Part Number | 25F100 |
| Item Name | Resistor,fixed,wire Wound |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Ward Leonard Ct Llc |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -5.000 TO 5.000 |
| Body Diameter | 0.562 INCHES NOMINAL IN |
| Electrical Resistance | 100.000 OHMS |
| Inclosure Type | ENCAPSULATED |
| Terminal Type | TAB, SOLDER LUG |
| Terminal Length | 0.375 INCHES NOMINAL IN |
| Style Designator | RADIAL TERMINAL EACH END |
| Power Dissipation Rating in Watts | 25.000 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 |
| Reliability Indicator | NOT ESTABLISHED |
| 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 |
|---|---|
| 10193201-3 | Us Army Aviation and Missile Command (USA) |
| 25F100 PRIMARY | Ward Leonard Ct Llc (USA) |
| 57D1711G09 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 25A100 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| A745-45-62 | 5/9 Secondary reference Regulators Products Group of Ward Leonard Electric Co Inc |
| 062-01003-049 | C/1 Advisory reference — outside the item-of-supply concept Lh Enterprise |
| JANA100WL | 5/9 Secondary reference U.S. Government activity |
| 803005-0-200 | 5/9 Secondary reference U.S. Government activity |
| 9688-9 | 5/9 Secondary reference Sypris Electronics, Llc |
| 57D1711G09 | 5/9 Secondary reference U.S. Government activity |
NSN 5905-00-100-4990 is a Resistor,fixed,wire Wound, manufactured by Ward Leonard Ct Llc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-100-4990 has 3 manufacturer part numbers on file: 10193201-3 (Us Army Aviation and Missile Command), 25F100 (Ward Leonard Ct Llc), 57D1711G09 (Westinghouse Electric Corp).
4 possible matches (shared part number, not a government interchangeability claim): 5905-00-158-5053, 5905-00-537-7148, 5307-00-637-0710. Verify interchangeability with system specifications before substitution.
Key specifications for 25F100: Resistance Tolerance in Percent: -5.000 TO 5.000; Body Diameter: 0.562 INCHES NOMINAL IN; Electrical Resistance: 100.000 OHMS; Inclosure Type: ENCAPSULATED. 12 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.