The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-00-951-4121, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. Government technical data includes 27 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-00-951-4121 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Status | ACTIVE |
| Electrical Resistance Per Section | 250.000 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 SINGLE SECTION |
| Section Quantity | 1 |
| Mounting Facility Quantity | 2 |
| Shaft Diameter | 0.100 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Body Style | RECTANGULAR W/MOUNTING HOLES/SLOTS |
| Terminal Length | 0.469 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN |
| Mounting Method | UNTHREADED HOLE(S) |
| Body Width | 0.235 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN |
| Body Height | 0.235 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN |
| Maximum Starting Torque | 8.00 INCH-OUNCES IN |
| Mounting Hole Diameter | 0.088 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN |
| Terminal Location | LOWER ADJACENT SIDE TWO ROWS |
| Center to Center Distance Between Center Terminal and Outside Terminal | 0.300 INCHES NOMINAL IN |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Lateral Distance Between Mounting Hole Centers | 0.109 INCHES MINIMUM AND 0.160 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminal Rows | 0.100 INCHES NOMINAL IN |
| Shaft Length | 0.036 INCHES MINIMUM AND 0.077 INCHES MAXIMUM IN |
| Body Length | 1.218 INCHES MINIMUM AND 1.282 INCHES MAXIMUM IN |
| Center to Center Distance Between Terminals | 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN |
| Power Dissipation Rating Per Section in Watts | 0.25 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 6120.0 MINIMUM AND 9720.0 MAXIMUM |
| Reliability Indicator | NOT ESTABLISHED |
| Actuator Travel Control Feature | CLUTCH |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 PIN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MILR22097-1 | 4/1 Identification reference U.S. Government activity |
| RJ11AP254 | 2/2 Government specification standardization U.S. Government activity |
NSN 5905-00-951-4121 is a Resistor,variable,nonwire Wound,, classified under FSC 5905, Resistor. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5905-01-041-1970. Verify interchangeability with system specifications before substitution.
Key specifications for 5905-00-951-4121: Overall Height: 0.235 INCHES MINIMUM AND 0.300 INCHES MAXIMUM IN; Electrical Resistance Per Section: 250.000 KILOHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 125.0 SINGLE SECTION; Section Quantity: 1. 27 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.