The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-024-4121, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Astec America Inc.. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-024-4121 |
| Primary Part Number | 63-724-103 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Astec America Inc. |
| Status | ACTIVE |
| Electrical Resistance Per Section | 10.0 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 SINGLE SECTION |
| Section Quantity | 1 |
| Body Style | RECTANGULAR |
| Terminal Length | 0.125 INCHES NOMINAL IN |
| Mounting Method | TERMINAL |
| Body Width | 0.375 INCHES MAXIMUM IN |
| Body Height | 0.400 INCHES NOMINAL IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -50.0 TO 150.0 SINGLE SECTION |
| Terminal Location | REAR END |
| Center to Center Distance Between Center Terminal and Outside Terminal | 0.100 INCHES NOMINAL IN |
| Actuator Type | FLUSH DRIVE WITH SLOT-HOLE |
| Body Length | 0.228 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 0.750 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 270.0 NOMINAL |
| Reliability Indicator | NOT ESTABLISHED |
| Resistance Tolerance Per Section in Percent | -20.0 TO 20.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 PIN |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 40.0 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 |
|---|---|
| B4023651 | Department of the Army Hq United States Army Communications Research and Development Command (USA) |
| 63-724-103 PRIMARY | Astec America Inc. (USA) |
| Reference | Meaning |
|---|---|
| 420801 | C/1 Advisory reference — outside the item-of-supply concept Dictaphone Corporation |
| 3359P-1-103 | C/1 Advisory reference — outside the item-of-supply concept Bourns Inc |
| VA05H001-103 | 5/9 Secondary reference U.S. Government activity |
| 3359P-1-103 | 5/9 Secondary reference U.S. Government activity |
NSN 5905-01-024-4121 is a Resistor,variable,nonwire Wound,, manufactured by Astec America Inc., classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-024-4121 has 2 manufacturer part numbers on file: B4023651 (Department of the Army Hq United States Army Communications Research and Development Command), 63-724-103 (Astec America Inc.).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-073-7418. Verify interchangeability with system specifications before substitution.
Key specifications for 63-724-103: Overall Height: 0.456 INCHES NOMINAL IN; Electrical Resistance Per Section: 10.0 KILOHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 125.0 SINGLE SECTION; Section Quantity: 1. 20 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.