The Resistor,variable,motor Driven, cataloged under National Stock Number 5905-01-335-8384, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ametek, Inc. Div Aerospace & Defense. Government technical data includes 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-335-8384 |
| Primary Part Number | CB-1520-F |
| Item Name | Resistor,variable,motor Driven |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Ametek, Inc. Div Aerospace & Defense |
| Status | ACTIVE |
| Body Diameter | 0.913 INCHES NOMINAL IN |
| Electrical Resistance Per Section | 30.0 KILOHMS SINGLE SECTION |
| Section Quantity | 1 |
| Mounting Facility Quantity | 1 |
| Shaft Diameter | 0.090 INCHES NOMINAL IN |
| Function Characteristic Per Section | SINGLE SECTION LINEAR |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Function Conformity Tolerance Per Section | -0.25 TO 0.25 SINGLE SECTION |
| Motor Type | PERMANENT MAGNET |
| Mounting Method | CLAMP RING(S) |
| Motor Voltage Type and Rating in Volts | 7.0 DC |
| Shaft Style | ROUND |
| Resistance Element Type Per Section | SINGLE SECTION CONDUCTIVE PLASTIC |
| Shaft Length | 0.563 INCHES NOMINAL IN |
| Body Length | 1.381 INCHES MAXIMUM IN |
| Standard Taper Curve Per Section | SINGLE SECTION LINEAR |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 SINGLE SECTION |
| Terminal Type and Quantity | 5 WIRE LEAD |
| Function Conformity Per Section | SINGLE SECTION INDEPENDENT LINEARITY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CB-1520-F PRIMARY | Ametek, Inc. Div Aerospace & Defense (USA) |
| Reference | Meaning |
|---|---|
| U306236 | 5/2 Secondary reference U.S. Government activity |
| CD-1520-F | 5/9 Secondary reference Ametek, Inc. Div Aerospace & Defense |
| CB-1520-F-STYLE 1 | 5/9 Secondary reference Ametek, Inc. Div Aerospace & Defense |
NSN 5905-01-335-8384 is a Resistor,variable,motor Driven, manufactured by Ametek, Inc. Div Aerospace & Defense, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-335-8384 has 1 manufacturer part number on file: CB-1520-F (Ametek, Inc. Div Aerospace & Defense).
Key specifications for CB-1520-F: Body Diameter: 0.913 INCHES NOMINAL IN; Electrical Resistance Per Section: 30.0 KILOHMS SINGLE SECTION; Section Quantity: 1; Mounting Facility Quantity: 1. 19 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.
NSN 5905-01-335-8384 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.