The Resistor,variable,nonwire Wound,, cataloged under National Stock Number 5905-01-304-1320, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp. Government technical data includes 30 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-01-304-1320 |
| Primary Part Number | 70902-21906-103 |
| Item Name | Resistor,variable,nonwire Wound, |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp |
| Status | ACTIVE |
| Maximum Running Torque | 9.00 INCH-OUNCES IN |
| Nonturn Device Location | AT 12 OCLOCK |
| Body Diameter | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Screw Thread Quantity Per Inch | 32.0 |
| Electrical Resistance Per Section | 2.0 KILOHMS ALL SECTIONS |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 120.0 ALL SECTIONS |
| Section Quantity | 2 |
| Shaft Diameter | 0.1245 INCHES MINIMUM AND 0.1255 INCHES MAXIMUM IN |
| Nonturn Device Radius | 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Fragility Factor | MODERATELY RUGGED |
| Function Characteristic Per Section | ALL SECTIONS LINEAR |
| Body Style | CYLINDRICAL BUSHING MOUNTED |
| Function Conformity Tolerance Per Section | -0.50 TO 0.50 ALL SECTIONS |
| Mounting Method | STANDARD BUSHING |
| Maximum Starting Torque | 9.00 INCH-OUNCES IN |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Shaft Style | ROUND |
| Actuator Type | SINGLE SHAFT |
| Shaft Length | 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN |
| Body Length | 1.500 INCHES MAXIMUM IN |
| Maximum Stop Torque | 128.00 INCH-OUNCES IN |
| Power Dissipation Rating Per Section in Watts | 1.0 FREE AIR ALL SECTIONS |
| Effective Electrical Rotation in Deg Angular Rotation | 297.0 MINIMUM |
| Screw Thread Diameter | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Bearing Type | SLEEVE SHAFT |
| Reliability Indicator | NOT ESTABLISHED |
| Screw Thread Series Designator | UNEF |
| Cubic Measure | 0.106 CUBIC INCHES |
| Actuator Travel Control Feature | STOPS |
| Test Data Document | 78286-70902-21906 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING) |
| 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 |
|---|---|
| 78FL2-311 | Honeywell International Inc Dba Honeywell International Div New England Instrument (nei) (USA) |
| 14CB2-3623 | Servo Instrument Corporation (USA) |
| 70902-21906-103 PRIMARY | Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp (USA) |
NSN 5905-01-304-1320 is a Resistor,variable,nonwire Wound,, manufactured by Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp, classified under FSC 5905, Resistor. Status: active.
NSN 5905-01-304-1320 has 3 manufacturer part numbers on file: 78FL2-311 (Honeywell International Inc Dba Honeywell International Div New England Instrument (nei)), 14CB2-3623 (Servo Instrument Corporation), 70902-21906-103 (Sikorsky Aircraft Corporation Dba Sikorsky Aircraft Corp).
Key specifications for 70902-21906-103: Maximum Running Torque: 9.00 INCH-OUNCES IN; Nonturn Device Location: AT 12 OCLOCK; Body Diameter: 0.865 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN; Screw Thread Quantity Per Inch: 32.0. 30 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.