The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-889-5538, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 30 specifications, cited from the U.S. Government catalog. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-889-5538 |
| Primary Part Number | 9191931 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| Maximum Running Torque | 0.60 INCH-OUNCES IN |
| Body Diameter | 1.750 INCHES NOMINAL IN |
| Lateral Runout | 0.002 INCHES IN |
| Electrical Resistance Per Section | 125.0 KILOHMS 1ST SECTION |
| Electrical Resistance Per Section | 200.0 KILOHMS 4TH SECTION |
| Electrical Resistance Per Section | 50.0 KILOHMS 2ND SECTION |
| Electrical Resistance Per Section | 50.0 KILOHMS 3RD SECTION |
| Mounting Lip Depth | 0.0930 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 90.0 ALL SECTIONS |
| Undercut Width | 0.0730 INCHES MINIMUM IN |
| Section Quantity | 4 |
| Shaft Diameter | 0.2494 INCHES MINIMUM AND 0.2499 INCHES MAXIMUM IN |
| Undercut Diameter | 1.561 INCHES MINIMUM AND 1.562 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGED |
| Function Characteristic Per Section | 1ST SECTION LINEAR |
| Function Characteristic Per Section | 2ND SECTION LINEAR |
| Function Characteristic Per Section | 3RD SECTION LINEAR |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Function Conformity Tolerance Per Section | -0.25 TO 0.25 2ND SECTION |
| Function Conformity Tolerance Per Section | -0.25 TO 0.25 3RD SECTION |
| Function Conformity Tolerance Per Section | -0.50 TO 0.50 1ST SECTION |
| Shaft End Play | 0.005 INCHES IN |
| Mounting Method | CLAMP RING(S) |
| Maximum Starting Torque | 0.70 INCH-OUNCES IN |
| Fixed Tap Quantity Per Section | 1 ALL SECTIONS |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -20.0 TO 20.0 ALL SECTIONS |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Lip Diameter | 1.7500 INCHES NOMINAL IN |
| Features Provided | HUMIDITY PROOF |
| Shaft Style | ROUND |
| 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 |
|---|---|
| 134WS255 | Honeywell International Inc Dba Honeywell International Div New England Instrument (nei) (USA) |
| 757-6221 | Servo Instrument Corporation (USA) |
| 9191931 PRIMARY | Us Army Aviation and Missile Command (USA) |
| AP18-C77 | Samarius Precision Instruments, Inc. Dba Samarius Precision Instruments (USA) |
| 5439-112-0 | Bi Technologies Corporation Div Bi Technologies Corp. (USA) |
| Reference | Meaning |
|---|---|
| ST18S182 | 5/9 Secondary reference U.S. Government activity |
NSN 5905-00-889-5538 is a Resistor,variable,wire Wound,non, manufactured by Us Army Aviation and Missile Command, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-889-5538 has 5 manufacturer part numbers on file: 134WS255 (Honeywell International Inc Dba Honeywell International Div New England Instrument (nei)), 757-6221 (Servo Instrument Corporation), 9191931 (Us Army Aviation and Missile Command), AP18-C77 (Samarius Precision Instruments, Inc. Dba Samarius Precision Instruments), 5439-112-0 (Bi Technologies Corporation Div Bi Technologies Corp.).
Key specifications for 9191931: Maximum Running Torque: 0.60 INCH-OUNCES IN; Body Diameter: 1.750 INCHES NOMINAL IN; Lateral Runout: 0.002 INCHES IN; Electrical Resistance Per Section: 125.0 KILOHMS 1ST 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.