The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-549-4402, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Grimes Aerospace Company. Government technical data includes 21 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-549-4402 |
| Primary Part Number | A4409 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Grimes Aerospace Company |
| Status | ACTIVE |
| Nonturn Device Location | AT 9 OCLOCK |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 1.000 KILOHMS SINGLE SECTION |
| Switch Voltage Rating in Volts | 125.0 |
| Section Quantity | 1 |
| Shaft Diameter | 0.250 INCHES NOMINAL IN |
| Nonturn Device Radius | 0.531 INCHES NOMINAL IN |
| Switch Operating Position | START OF ROTATION |
| Mounting Method | STANDARD BUSHING |
| Features Provided | SWITCH |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.875 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 2.0 FREE AIR SINGLE SECTION |
| Switch Type | ROTARY |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Screw Thread Series Designator | UNEF |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 SINGLE SECTION |
| Switch Contact Arrangement | SINGLE POLE, SINGLE THROW, NORMALLY OPEN, BOTH POSITIONS MAINTAINED |
| Terminal Type and Quantity | 5 TAB, SOLDER LUG |
| Switch Current Type and Rating in Amps | 3.000 AC/DC |
| 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 |
|---|---|
| A4409 PRIMARY | Grimes Aerospace Company (USA) |
NSN 5905-00-549-4402 is a Resistor,variable,wire Wound,non, manufactured by Grimes Aerospace Company, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-549-4402 has 1 manufacturer part number on file: A4409 (Grimes Aerospace Company).
Key specifications for A4409: Nonturn Device Location: AT 9 OCLOCK; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 1.000 KILOHMS SINGLE SECTION; Switch Voltage Rating in Volts: 125.0. 21 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.