The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-00-703-8903, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Clarostat Sensors and Controls. Government technical data includes 30 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-00-703-8903 |
| Primary Part Number | 54-26M |
| Item Name | Resistor,variable,wire Wound,pre |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Clarostat Sensors and Controls |
| Status | ACTIVE |
| Maximum Running Torque | 0.50 INCH-OUNCES IN |
| Body Diameter | 1.750 INCHES MAXIMUM IN |
| Lateral Runout | 0.001 INCHES IN |
| Electrical Resistance Per Section | 24.000 KILOHMS SINGLE SECTION |
| Mounting Lip Depth | 0.0930 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 SINGLE SECTION |
| Undercut Width | 0.0780 INCHES NOMINAL IN |
| Section Quantity | 1 |
| Shaft Diameter | 0.250 INCHES MAXIMUM IN |
| Undercut Diameter | 1.312 INCHES NOMINAL IN |
| Function Characteristic Per Section | SINGLE SECTION LINEAR |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Function Conformity Tolerance Per Section | -0.15 TO 0.15 SINGLE SECTION |
| Shaft End Play | 0.00250 INCHES IN |
| Mounting Method | CLAMP RING(S) |
| Maximum Starting Torque | 1.50 INCH-OUNCES IN |
| Fixed Tap Quantity Per Section | 22 SINGLE SECTION |
| Terminal Location | REAR END LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Lip Diameter | 1.4370 INCHES MINIMUM IN |
| Features Provided | HUMIDITY PROOF |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.469 INCHES NOMINAL IN |
| Pilot Diameter | 1.3125 INCHES MINIMUM IN |
| Body Length | 1.062 INCHES MAXIMUM IN |
| Shaft Runout | 0.001 INCHES IN |
| Pilot Length | 0.0620 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 4.5 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 356.0 NOMINAL |
| Pilot Diameter Runout | 0.00250 INCHES IN |
| 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 |
|---|---|
| 54-26M | Clarostat Sensors and Controls (USA) |
| Reference | Meaning |
|---|---|
| 5472421P1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5905-00-703-8903 is a Resistor,variable,wire Wound,pre, manufactured by Clarostat Sensors and Controls, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-703-8903 has 1 manufacturer part number on file: 54-26M (Clarostat Sensors and Controls).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-629-9042. Verify interchangeability with system specifications before substitution.
Key specifications for 54-26M: Maximum Running Torque: 0.50 INCH-OUNCES IN; Body Diameter: 1.750 INCHES MAXIMUM IN; Lateral Runout: 0.001 INCHES IN; Electrical Resistance Per Section: 24.000 KILOHMS SINGLE SECTION. 30 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.