The Resistor,fixed,composition, cataloged under National Stock Number 5905-01-100-8440, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Raytheon Company. Government technical data includes 14 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-01-100-8440 |
| Primary Part Number | 238278-1 |
| Item Name | Resistor,fixed,composition |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Raytheon Company |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -5.000 TO 5.000 |
| Electrical Resistance | 50.000 OHMS |
| Inclosure Type | ENCASED |
| Terminal Type | TERMINAL TYPE PER BODY STYLE |
| Terminal Length | 0.250 INCHES MINIMUM IN |
| Body Width | 0.515 INCHES NOMINAL IN |
| Body Height | 0.160 INCHES MAXIMUM IN |
| Style Designator | TERMINAL TWO SIDES |
| Power Dissipation Rating in Watts | 20.000 FREE AIR |
| Ambient Temp at Full Rated Power | 100.0 CELSIUS DEGC |
| Body Length | 0.250 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius at Zero Percent Rated Power | 150.0 |
| Reliability Indicator | NOT ESTABLISHED |
| Precious Material and Location | TERMINAL SURFACES GOLD |
| 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 |
|---|---|
| 238278-1 PRIMARY | Raytheon Company (USA) |
| Reference | Meaning |
|---|---|
| PPT-515-20-3 | 5/9 Secondary reference Caes Systems Llc |
| 238287-1 | C/1 Advisory reference — outside the item-of-supply concept Raytheon Company |
| B4003314-1 | C/1 Advisory reference — outside the item-of-supply concept Department of the Army Hq United States Army Communications Research and Development Command |
| A3RM05-1 | 5/9 Secondary reference Caes Systems Llc |
NSN 5905-01-100-8440 is a Resistor,fixed,composition, manufactured by Raytheon Company, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-100-8440 has 1 manufacturer part number on file: 238278-1 (Raytheon Company).
1 possible match (shared part number, not a government interchangeability claim): 6625-01-605-5391. Verify interchangeability with system specifications before substitution.
Key specifications for 238278-1: Resistance Tolerance in Percent: -5.000 TO 5.000; Electrical Resistance: 50.000 OHMS; Inclosure Type: ENCASED; Terminal Type: TERMINAL TYPE PER BODY STYLE. 14 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.