The Resistor,fixed,wire Wound,induct, cataloged under National Stock Number 5905-00-644-9435, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sprague Electric Co World Hqs. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 5905-00-644-9435 |
| Primary Part Number | 28E503J |
| Item Name | Resistor,fixed,wire Wound,induct |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Sprague Electric Co World Hqs |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -5.000 TO 5.000 |
| Body Diameter | 0.312 INCHES NOMINAL IN |
| Electrical Resistance | 50.000 KILOHMS |
| Inclosure Type | ENCAPSULATED |
| Terminal Type | WIRE LEAD |
| Style Designator | AXIAL TERMINAL EACH END |
| Power Dissipation Rating in Watts | 10.000 FREE AIR |
| Ambient Temp at Full Rated Power | 40.0 CELSIUS DEGC |
| Body Length | 1.875 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius at Zero Percent Rated Power | 340.0 |
| 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 |
|---|---|
| 28E503J PRIMARY | Sprague Electric Co World Hqs (USA) |
| Reference | Meaning |
|---|---|
| 28E | 3/1 Design control — primary reference Sprague Electric Co World Hqs |
NSN 5905-00-644-9435 is a Resistor,fixed,wire Wound,induct, manufactured by Sprague Electric Co World Hqs, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-644-9435 has 1 manufacturer part number on file: 28E503J (Sprague Electric Co World Hqs).
2 possible matches (shared part number, not a government interchangeability claim): 5905-00-686-9611, 5640-00-810-9572. Verify interchangeability with system specifications before substitution.
Key specifications for 28E503J: Resistance Tolerance in Percent: -5.000 TO 5.000; Body Diameter: 0.312 INCHES NOMINAL IN; Electrical Resistance: 50.000 KILOHMS; Inclosure Type: ENCAPSULATED. 10 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.