The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-00-166-3972, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Muirhead Aerospace Ltd. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5905-00-166-3972 |
| Primary Part Number | 1639013 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Muirhead Aerospace Ltd |
| Status | ACTIVE |
| Electrical Resistance Per Section | 2.0 KILOHMS SINGLE SECTION |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 150.0 SINGLE SECTION |
| Section Quantity | 1 |
| Shaft Diameter | 0.075 INCHES NOMINAL IN |
| Body Style | RECTANGULAR |
| Terminal Length | 0.172 INCHES MINIMUM IN |
| Mounting Method | TERMINAL |
| Body Width | 0.190 INCHES NOMINAL IN |
| Body Height | 0.375 INCHES NOMINAL IN |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -100.0 TO 100.0 SINGLE SECTION |
| Terminal Location | LOWER ADJACENT SIDE SINGLE ROW |
| Center to Center Distance Between Center Terminal and Outside Terminal | 0.100 INCHES NOMINAL IN |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.080 INCHES MAXIMUM IN |
| Specification/standard Data | 81349-MIL-R-22097/4 GOVERNMENT SPECIFICATION |
| Body Length | 0.420 INCHES MAXIMUM 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 | 5400.0 MINIMUM AND 10800.0 MAXIMUM |
| Reliability Indicator | NOT ESTABLISHED |
| Actuator Travel Control Feature | CLUTCH |
| Test Data Document | 81349-MIL-R-22097 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). |
| 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 | 5400.0 MINIMUM AND 10800.0 MAXIMUM |
| Ambient Temp in Deg Celsius Per Section at Full Rated Power | 85.0 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 |
|---|---|
| 1639013 | Muirhead Aerospace Ltd (GBR) |
| RJ24FX202 | Bourns Ltd (GBR) |
| 01639013 | Muirhead Aerospace Ltd (GBR) |
| Reference | Meaning |
|---|---|
| MILR22097-4 | 4/1 Identification reference U.S. Government activity |
| RJ24FX202 | 2/2 Government specification standardization U.S. Government activity |
NSN 5905-00-166-3972 is a Resistor,variable,nonwire Wound,, manufactured by Muirhead Aerospace Ltd, classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-166-3972 has 3 manufacturer part numbers on file: 1639013 (Muirhead Aerospace Ltd), RJ24FX202 (Bourns Ltd), 01639013 (Muirhead Aerospace Ltd).
1 possible match (shared part number, not a government interchangeability claim): 5905-01-663-9548. Verify interchangeability with system specifications before substitution.
Key specifications for 1639013: Electrical Resistance Per Section: 2.0 KILOHMS SINGLE SECTION; Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power: 150.0 SINGLE SECTION; Section Quantity: 1; Shaft Diameter: 0.075 INCHES NOMINAL IN. 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.