The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-907-2020, 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 25 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5905-00-907-2020 |
| Primary Part Number | 978-6003 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Servo Instrument Corporation |
| Status | ACTIVE |
| Body Diameter | 1.328 INCHES MAXIMUM IN |
| Electrical Resistance Per Section | 275.0 KILOHMS SINGLE SECTION |
| Mounting Lip Depth | 0.0640 INCHES NOMINAL IN |
| Undercut Width | 0.0580 INCHES NOMINAL IN |
| Section Quantity | 1 |
| Shaft Diameter | 0.125 INCHES NOMINAL IN |
| Undercut Diameter | 0.750 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Overall Diameter | 1.328 INCHES MAXIMUM IN |
| Mounting Method | CLAMP RING(S) |
| Maximum Starting Torque | 2.50 INCH-OUNCES IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -70.0 TO 70.0 SINGLE SECTION |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Lip Diameter | 0.8760 INCHES NOMINAL IN |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.436 INCHES NOMINAL IN |
| Pilot Diameter | 0.7510 INCHES NOMINAL IN |
| Body Length | 1.250 INCHES NOMINAL IN |
| Pilot Length | 0.0600 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 1.0 FREE AIR SINGLE SECTION |
| Reliability Indicator | NOT ESTABLISHED |
| Test Data Document | 11871-6800-3030-1 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| Resistance Tolerance Per Section in Percent | -5.0 TO 5.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 WIRE LEAD |
| 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 |
|---|---|
| 978-6003 PRIMARY | Servo Instrument Corporation (USA) |
| 156WS206 PRIMARY | Honeywell International Inc Dba Honeywell International Div New England Instrument (nei) (USA) |
| 99-586-1 | Bei Sensors & Systems Company, Inc. Dba Bei Duncan (USA) |
| Reference | Meaning |
|---|---|
| 6800-3030-1 | 5/9 Secondary reference Recon/optical, Inc. |
| 978-6003 | 5/9 Secondary reference Bunker Ramo Corp Amphenol Controls Div |
NSN 5905-00-907-2020 is a Resistor,variable,wire Wound,non, manufactured by Servo Instrument Corporation, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-907-2020 has 3 manufacturer part numbers on file: 978-6003 (Servo Instrument Corporation), 156WS206 (Honeywell International Inc Dba Honeywell International Div New England Instrument (nei)), 99-586-1 (Bei Sensors & Systems Company, Inc. Dba Bei Duncan).
Key specifications for 978-6003: Body Diameter: 1.328 INCHES MAXIMUM IN; Electrical Resistance Per Section: 275.0 KILOHMS SINGLE SECTION; Mounting Lip Depth: 0.0640 INCHES NOMINAL IN; Undercut Width: 0.0580 INCHES NOMINAL IN. 25 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.