The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-147-5865, is classified within Federal Supply Class 5905 (Resistor) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Honeywell International Inc Dba Honeywell International Div New England Instrument (nei). Government technical data includes 29 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5905-00-147-5865 |
| Primary Part Number | 78WS166 |
| Item Name | Resistor,variable,wire Wound,non |
| FSC / FSG | 5905 / 59 — Resistor |
| Manufacturer | Honeywell International Inc Dba Honeywell International Div New England Instrument (nei) |
| Status | ACTIVE |
| Maximum Running Torque | 0.25 INCH-OUNCES IN |
| Body Diameter | 0.896 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN |
| Electrical Resistance Per Section | 5.0 KILOHMS SINGLE SECTION |
| Mounting Lip Depth | 0.0620 INCHES NOMINAL IN |
| Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power | 125.0 SINGLE SECTION |
| Undercut Width | 0.0570 INCHES MINIMUM AND 0.0670 INCHES MAXIMUM IN |
| Section Quantity | 1 |
| Shaft Diameter | 0.124 INCHES NOMINAL IN |
| Undercut Diameter | 0.781 INCHES NOMINAL IN |
| Fragility Factor | MODERATELY RUGGED |
| Body Style | CYLINDRICAL SERVO MOUNTED |
| Shaft End Play | 0.002 INCHES IN |
| Overall Diameter | 1.302 INCHES MINIMUM AND 1.312 INCHES MAXIMUM IN |
| Tap Location From Ccw Terminal Per Section in Ohms | 2500.0 SINGLE SECTION |
| Mounting Method | CLAMP RING(S) |
| Maximum Starting Torque | 0.30 INCH-OUNCES IN |
| Fixed Tap Quantity Per Section | 1 SINGLE SECTION |
| Temp Coefficient of Resistance Per Section in Ppm Per Deg Celsius | -150.0 TO 150.0 SINGLE SECTION |
| Terminal Location | RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED |
| Mounting Lip Diameter | 0.8650 INCHES MINIMUM AND 0.8800 INCHES MAXIMUM IN |
| Features Provided | NONMETALLIC SHAFT |
| Shaft Style | ROUND, SLOTTED |
| Actuator Type | DOUBLE ENDED SHAFT |
| Shaft Length | 0.625 INCHES NOMINAL IN |
| Pilot Diameter | 0.7495 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Body Length | 0.802 INCHES MINIMUM AND 0.812 INCHES MAXIMUM IN |
| Shaft Runout | 0.001 INCHES IN |
| Pilot Length | 0.0620 INCHES NOMINAL IN |
| Power Dissipation Rating Per Section in Watts | 1.25 FREE AIR 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 |
|---|---|
| 561715 | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
| 78WS166 PRIMARY | Honeywell International Inc Dba Honeywell International Div New England Instrument (nei) (USA) |
| Reference | Meaning |
|---|---|
| 2877110 | 7/2 Vendor item drawing reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| 2877110 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms - Mitchel Field |
NSN 5905-00-147-5865 is a Resistor,variable,wire Wound,non, manufactured by Honeywell International Inc Dba Honeywell International Div New England Instrument (nei), classified under FSC 5905, Resistor. Status: active.
NSN 5905-00-147-5865 has 2 manufacturer part numbers on file: 561715 (Lockheed Martin Corporation Div Rms - Mitchel Field), 78WS166 (Honeywell International Inc Dba Honeywell International Div New England Instrument (nei)).
2 possible matches (shared part number, not a government interchangeability claim): 1390-00-200-0178, 6550-01-649-9673. Verify interchangeability with system specifications before substitution.
Key specifications for 78WS166: Maximum Running Torque: 0.25 INCH-OUNCES IN; Body Diameter: 0.896 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN; Electrical Resistance Per Section: 5.0 KILOHMS SINGLE SECTION; Mounting Lip Depth: 0.0620 INCHES NOMINAL IN. 29 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.