The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-253-8525, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Bourns Inc. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-253-8525 |
| Primary Part Number | 6644S-1-202 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Bourns Inc |
| Status | ACTIVE |
| Body Diameter | 1.063 INCHES NOMINAL IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 1.000 KILOHMS SINGLE SECTION |
| Section Quantity | 1 |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Mounting Method | STANDARD BUSHING |
| Body Length | 0.475 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 1.25 FREE AIR SINGLE SECTION |
| Screw Thread Diameter | 0.375 INCHES NOMINAL IN |
| Reliability Indicator | NOT ESTABLISHED |
| Resistance Tolerance Per Section in Percent | -10.0 TO 10.0 SINGLE SECTION |
| Mounting Bushing Length | 0.125 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 |
|---|---|
| Q531706035 | Rheinmetall Air Defence Ag (CHE) |
| 6644S-1-202 PRIMARY | Bourns Inc (USA) |
NSN 5905-01-253-8525 is a Resistor,variable,nonwire Wound,, manufactured by Bourns Inc, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-253-8525 has 2 manufacturer part numbers on file: Q531706035 (Rheinmetall Air Defence Ag), 6644S-1-202 (Bourns Inc).
Key specifications for 6644S-1-202: Body Diameter: 1.063 INCHES NOMINAL IN; Screw Thread Quantity Per Inch: 32.0; Electrical Resistance Per Section: 1.000 KILOHMS SINGLE SECTION; Section Quantity: 1. 12 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.