The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-145-4549, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Keysight Technologies Inc. Government technical data includes 25 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-01-145-4549 |
| Primary Part Number | 2100-3531 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Maximum Running Torque | 5.00 INCH-OUNCES IN |
| Electrical Resistance Per Section | 250.000 OHMS 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 NOMINAL IN |
| Body Height | 0.375 INCHES NOMINAL IN |
| Maximum Starting Torque | 5.00 INCH-OUNCES IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -100.0 TO 100.0 SINGLE SECTION |
| Terminal Location | LOWER ADJACENT SIDE TWO ROWS |
| Center to Center Distance Between Center Terminal and Outside Terminal | 0.100 INCHES NOMINAL IN |
| Actuator Type | FLUSH DRIVE WITH SLOT-HOLE |
| Center to Center Distance Between Terminal Rows | 0.100 INCHES NOMINAL IN |
| Body Length | 0.250 INCHES NOMINAL IN |
| Center to Center Distance Between Terminals | 0.200 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 0.5 FREE AIR SINGLE SECTION |
| Effective Electrical Rotation in Deg Angular Rotation | 240.0 NOMINAL |
| Reliability Indicator | NOT ESTABLISHED |
| Actuator Travel Control Feature | STOPS |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 SINGLE SECTION |
| Terminal Type and Quantity | 3 PIN |
| Rotary Actuator Travel in Angular Deg | 360.0 NOMINAL |
| 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 |
|---|---|
| 72PR250-177B | Newington Electric Co., Inc. (USA) |
| 72PR250 | Bi Technologies Corporation Div Bi Technologies Corp. (USA) |
| 63P | Vishay Sprague Inc (USA) |
| 3386P-Y46-251 | Bourns Inc (USA) |
| 2100-3531 PRIMARY | Keysight Technologies Inc (USA) |
| Reference | Meaning |
|---|---|
| 2100-3531 | 3/9 Design control — primary reference Keysight Technologies, Inc. |
| E2A251 | C/1 Advisory reference — outside the item-of-supply concept Rockwell Automation, Inc. Dba Rockwell Automation |
| 2100-3531 | 5/9 Secondary reference Hewlett-Packard Company Dba HP |
| 63P | 5/9 Secondary reference IV-Electronic Klaus Vespermann Kg |
NSN 5905-01-145-4549 is a Resistor,variable,nonwire Wound,, manufactured by Keysight Technologies Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-145-4549 has 5 manufacturer part numbers on file: 72PR250-177B (Newington Electric Co., Inc.), 72PR250 (Bi Technologies Corporation Div Bi Technologies Corp.), 63P (Vishay Sprague Inc), 3386P-Y46-251 (Bourns Inc), 2100-3531 (Keysight Technologies Inc).
1 possible match (shared part number, not a government interchangeability claim): 7125-01-266-3729. Verify interchangeability with system specifications before substitution.
Key specifications for 2100-3531: Maximum Running Torque: 5.00 INCH-OUNCES IN; Overall Height: 0.375 INCHES NOMINAL IN; Electrical Resistance Per Section: 250.000 OHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 125.0 SINGLE SECTION. 25 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.