PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1226121Resistor,variable,wire Wound,pre

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5905-00-651-1678 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-651-1678 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-651-1678. Primary manufacturer part number: 1226121.
Features
  • Resistor,variable,wire Wound,pre — FSC 5905
  • Pilot Diameter: 1.3120 INCHES MAXIMUM IN
  • Section Quantity: 1
  • Shaft Length: 0.688 INCHES NOMINAL IN
  • Body Style: CYLINDRICAL SERVO MOUNTED
  • Shaft Radial Play: 0.004 INCHES IN
  • Pilot Length: 0.0620 INCHES NOMINAL IN
  • Actuator Type: DOUBLE ENDED SHAFT
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Circuit regulation and filtering
  • Signal conditioning
General Description

The Resistor,variable,wire Wound,pre, cataloged under National Stock Number 5905-00-651-1678, is classified within Federal Supply Class 5905 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 30 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-651-1678
Primary Part Number1226121
Item NameResistor,variable,wire Wound,pre
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Pilot Diameter1.3120 INCHES MAXIMUM IN
Section Quantity1
Shaft Length0.688 INCHES NOMINAL IN
Body StyleCYLINDRICAL SERVO MOUNTED
Shaft Radial Play0.004 INCHES IN
Pilot Length0.0620 INCHES NOMINAL IN
Actuator TypeDOUBLE ENDED SHAFT
Shaft End Play0.00500 INCHES IN
Effective Electrical Rotation in Deg Angular Rotation349.0 NOMINAL
Lateral Runout0.004 INCHES IN
Pilot Diameter Runout0.00200 INCHES IN
Shaft Runout0.001 INCHES IN
Maximum Running Torque0.60 INCH-OUNCES IN
Maximum Starting Torque1.00 INCH-OUNCES IN
Terminal Type and Quantity3 TURRET
Function Characteristic Per SectionSINGLE SECTION LINEAR
Function Conformity Per SectionSINGLE SECTION ABSOLUTE CONFORMITY
Temp Coefficient of Resistance Wire Per Section in Ppm Per Deg Celsius-20.0 TO 20.0 SINGLE SECTION
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Resistance Tolerance Per Section in Percent-5.0 TO 5.0 SINGLE SECTION
Power Dissipation Rating Per Section in Watts2.0 FREE AIR SINGLE SECTION
Ambient Temp in Deg Celsius Per Section at Full Rated Power40.0 SINGLE SECTION
Actuator Travel Control FeatureCONTINUOUS MOTION
Rotary Actuator Travel in Angular Deg360.0 NOMINAL
Electrical Resistance Per Section25.000 KILOHMS SINGLE SECTION
Mounting Lip Depth0.0930 INCHES NOMINAL IN
Mounting MethodCLAMP RING(S)
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power125.0 SINGLE SECTION
Mounting Lip Diameter1.4380 INCHES NOMINAL IN
Body Length1.040 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5120-00-965-06045WR INTERCHANGEABLE
Wrench,plier
Stanley Tools Div of Stanley Works
4320-01-108-354667405 INTERCHANGEABLE
Ring,thrust
Reidville Hydraulics & Mfg Inc
Cross-Reference Index
Part NumberManufacturer
1226121 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
67-405 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
Related Parts
5120-00-965-0604INTERCHANGEABLE
WRENCH,PLIER
5WR
4320-01-108-3546INTERCHANGEABLE
RING,THRUST
67405

Frequently Asked Questions

What is NSN 5905-00-651-1678?

NSN 5905-00-651-1678 is a Resistor,variable,wire Wound,pre, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-651-1678?

NSN 5905-00-651-1678 has 2 cross-referenced part numbers: 1226121 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 67-405 (Lockheed Martin Corporation Div Rms - Mitchel Field).

What NSN replaces 5905-00-651-1678?

There are 2 known substitutes for 5905-00-651-1678: 5120-00-965-0604, 4320-01-108-3546. Verify interchangeability with system specifications before substitution.

What are the specifications of 1226121?

Key specifications for 1226121: Pilot Diameter: 1.3120 INCHES MAXIMUM IN; Section Quantity: 1; Shaft Length: 0.688 INCHES NOMINAL IN; Body Style: CYLINDRICAL SERVO MOUNTED. 30 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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