The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-175-8743, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Servo Instrument Corporation. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-175-8743 |
| Primary Part Number | 20A1-2145 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Servo Instrument Corporation |
| Status | ACTIVE |
| Body Diameter | 1.250 INCHES NOMINAL IN |
| Electrical Resistance Per Section | 20.0 OHMS SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Overall Diameter | 1.406 INCHES NOMINAL IN |
| Shaft Style | ROUND |
| Shaft Length | 1.000 INCHES NOMINAL IN |
| Body Length | 0.625 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Resistance Tolerance Per Section in Percent | -5.0 TO 5.0 SINGLE SECTION |
| 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 |
|---|---|
| 20A1-2145 PRIMARY | Servo Instrument Corporation (USA) |
| Reference | Meaning |
|---|---|
| 097-9705 | 5/9 Secondary reference Genrad Inc |
| 0971-3905 | 5/9 Secondary reference Genrad Inc |
NSN 5905-00-175-8743 is a Resistor,variable,wire Wound,non, manufactured by Servo Instrument Corporation, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-175-8743 has 1 manufacturer part number on file: 20A1-2145 (Servo Instrument Corporation).
Key specifications for 20A1-2145: Body Diameter: 1.250 INCHES NOMINAL IN; Electrical Resistance Per Section: 20.0 OHMS SINGLE SECTION; Section Quantity: 1; Shaft Diameter: 0.250 INCHES NOMINAL IN. 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.