The Resistor,fixed,film, cataloged under National Stock Number 5905-00-021-6494, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Trw Inc Trw Intl Trade Government Sales Dept. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-00-021-6494 |
| Primary Part Number | RNC55K2491F |
| Item Name | Resistor,fixed,film |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Trw Inc Trw Intl Trade Government Sales Dept |
| Status | ACTIVE |
| Resistance Tolerance in Percent | -1.000 TO 1.000 |
| Temp Coefficient of Resistance in Ppm Per Deg Celsius | -100.0 TO 100.0 |
| Body Diameter | 0.090 INCHES NOMINAL IN |
| Electrical Resistance | 2.490 KILOHMS |
| Inclosure Type | ENCAPSULATED |
| Terminal Type | WIRE LEAD |
| Terminal Length | 1.500 INCHES NOMINAL IN |
| Temp Range of Temp Coefficient in Deg Celsius | -55.0 TO 175.0 |
| Style Designator | AXIAL TERMINAL EACH END |
| Power Dissipation Rating in Watts | 0.100 FREE AIR |
| Ambient Temp at Full Rated Power | 125.0 CELSIUS DEGC |
| Unpackaged Unit Weight | 0.3 GRAMS G |
| Body Length | 0.250 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius at Zero Percent Rated Power | 175.0 |
| Reliability Indicator | NOT ESTABLISHED |
| Mil-Std-1276 Wire Lead Type Designator | C |
| 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 |
|---|---|
| RNC55K2491F PRIMARY | Trw Inc Trw Intl Trade Government Sales Dept (USA) |
| Reference | Meaning |
|---|---|
| 321-0231-00 | 5/9 Secondary reference Spacelabs-Hillsboro Operations Squibb Vitatek Inc |
| CEAT0-2491F | 5/9 Secondary reference Trw Inc Trw Electronic Components Irc Fixed Resistors Philadelphia Div |
NSN 5905-00-021-6494 is a Resistor,fixed,film, manufactured by Trw Inc Trw Intl Trade Government Sales Dept, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-021-6494 has 1 manufacturer part number on file: RNC55K2491F (Trw Inc Trw Intl Trade Government Sales Dept).
1 possible match (shared part number, not a government interchangeability claim): 5905-00-432-6378. Verify interchangeability with system specifications before substitution.
Key specifications for RNC55K2491F: Resistance Tolerance in Percent: -1.000 TO 1.000; Temp Coefficient of Resistance in Ppm Per Deg Celsius: -100.0 TO 100.0; Body Diameter: 0.090 INCHES NOMINAL IN; Electrical Resistance: 2.490 KILOHMS. 16 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.