The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-254-7699, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Claude Lyons Limited. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-254-7699 |
| Primary Part Number | L12SP1542-25-10 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Claude Lyons Limited |
| Status | ACTIVE |
| Nonturn Device Location | AT 6 OCLOCK |
| Body Diameter | 0.875 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 25.0 OHMS SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.125 INCHES NOMINAL IN |
| Nonturn Device Radius | 0.250 INCHES NOMINAL IN |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Overall Diameter | 1.031 INCHES NOMINAL IN |
| Mounting Method | STANDARD BUSHING |
| Maximum Starting Torque | 2.00 INCH-OUNCES IN |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Features Provided | NONMETALLIC SHAFT |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.625 INCHES NOMINAL IN |
| Body Length | 0.688 INCHES NOMINAL IN |
| Maximum Stop Torque | 80.00 INCH-OUNCES IN |
| Power Dissipation Rating Per Section in Watts | 10.0 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 290.0 NOMINAL |
| Screw Thread Diameter | 0.250 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Actuator Travel Control Feature | STOPS |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 TAB, SOLDER LUG |
| Rotary Actuator Travel in Angular Deg | 300.0 NOMINAL |
| Mounting Bushing Length | 0.250 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 70.0 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 |
|---|---|
| L12SP1542-25-10 PRIMARY | Claude Lyons Limited (GBR) |
| 1209884 | Thales Security Systems Uk Limited (GBR) |
| Reference | Meaning |
|---|---|
| L12-SP1542-25-10 | C/1 Advisory reference — outside the item-of-supply concept Specialized Auto Engine Inc |
NSN 5905-00-254-7699 is a Resistor,variable,wire Wound,non, manufactured by Claude Lyons Limited, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-254-7699 has 2 manufacturer part numbers on file: L12SP1542-25-10 (Claude Lyons Limited), 1209884 (Thales Security Systems Uk Limited).
Key specifications for L12SP1542-25-10: Nonturn Device Location: AT 6 OCLOCK; Body Diameter: 0.875 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 25.0 OHMS SINGLE SECTION. 29 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.