The Resistor,fixed,film, cataloged under National Stock Number 5905-01-307-5693, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Koa Speer Electronics Inc. Government technical data includes 12 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 5905-01-307-5693 |
| Primary Part Number | CF1/4-1R500J |
| Item Name | Resistor,fixed,film |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Koa Speer Electronics Inc |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -5.000 TO 5.000 |
| Body Diameter | 0.098 INCHES MAXIMUM IN |
| Electrical Resistance | 1.500 OHMS |
| Inclosure Type | ENCAPSULATED |
| Terminal Type | WIRE LEAD |
| Terminal Length | 1.469 INCHES MINIMUM AND 1.531 INCHES MAXIMUM IN |
| Style Designator | AXIAL TERMINAL EACH END |
| Power Dissipation Rating in Watts | 0.250 FREE AIR |
| Ambient Temp at Full Rated Power | 70.0 CELSIUS DEGC |
| Body Length | 0.285 INCHES MAXIMUM IN |
| Ambient Temp in Deg Celsius at Zero Percent Rated Power | 155.0 |
| 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 |
|---|---|
| CF1/4-1R500J | Koa Speer Electronics Inc (USA) |
| Reference | Meaning |
|---|---|
| SBB-1R500J | 5/2 Secondary reference U.S. Government activity |
| 442020 | 3/2 Design control — primary reference U.S. Government activity |
| RNC60H1R50J | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 5043CX1R500J | 5/9 Secondary reference North American Philips Corp Philips Components Discrete Products Div |
| 732800 | 5/2 Secondary reference U.S. Government activity |
NSN 5905-01-307-5693 is a Resistor,fixed,film, manufactured by Koa Speer Electronics Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-307-5693 has 1 manufacturer part number on file: CF1/4-1R500J (Koa Speer Electronics Inc).
3 possible matches (shared part number, not a government interchangeability claim): 6515-01-372-9851, 3040-01-459-0291, 5998-01-665-8800. Verify interchangeability with system specifications before substitution.
Key specifications for CF1/4-1R500J: Resistance Tolerance in Percent: -5.000 TO 5.000; Body Diameter: 0.098 INCHES MAXIMUM IN; Electrical Resistance: 1.500 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.