The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-309-5432, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bourns, Inc. Dba Bourns Sensor Controls. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-309-5432 |
| Primary Part Number | 91A1A-B28-B12 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Bourns, Inc. Dba Bourns Sensor Controls |
| Status | ACTIVE |
| Electrical Resistance Per Section | 2.5 KILOHMS SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.249 INCHES NOMINAL IN |
| Body Style | RECTANGULAR W/BUSHING |
| Body Width | 0.625 INCHES NOMINAL IN |
| Body Height | 0.625 INCHES NOMINAL IN |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.875 INCHES NOMINAL IN |
| Body Length | 0.900 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 0.5 FREE AIR SINGLE SECTION |
| Reliability Indicator | NOT ESTABLISHED |
| Resistance Tolerance Per Section in Percent | -20.0 TO 20.0 SINGLE SECTION |
| Terminal Type and Quantity | 2 PIN |
| Mounting Bushing Length | 1.250 INCHES NOMINAL IN |
| 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 |
|---|---|
| 91A1A-B28-B12 PRIMARY | Bourns, Inc. Dba Bourns Sensor Controls (USA) |
| Reference | Meaning |
|---|---|
| 91A1A-B28-B12 | 5/9 Secondary reference Bourns Inc |
NSN 5905-01-309-5432 is a Resistor,variable,nonwire Wound,, manufactured by Bourns, Inc. Dba Bourns Sensor Controls, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-309-5432 has 1 manufacturer part number on file: 91A1A-B28-B12 (Bourns, Inc. Dba Bourns Sensor Controls).
Key specifications for 91A1A-B28-B12: Electrical Resistance Per Section: 2.5 KILOHMS SINGLE SECTION; Section Quantity: 1; Shaft Diameter: 0.249 INCHES NOMINAL IN; Body Style: RECTANGULAR W/BUSHING. 16 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.