PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1277398Resistor,variable,wire Wound,non

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5905-00-651-1639 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-651-1639 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-651-1639. Primary manufacturer part number: 1277398.
Features
  • Resistor,variable,wire Wound,non — FSC 5905
  • Electrical Resistance Per Section: 8.170 KILOHMS 2ND SECTION
  • Shaft Style: ROUND, SLOTTED
  • Section Quantity: 2
  • Pilot Length: 0.0620 INCHES NOMINAL IN
  • Mounting Lip Diameter: 1.4380 INCHES NOMINAL IN
  • Maximum Starting Torque: 1.60 INCH-OUNCES IN
  • Actuator Type: SINGLE SHAFT
Applications
  • Electrical power distribution
  • Signal transmission
  • Equipment interconnection
  • Circuit regulation and filtering
  • Signal conditioning
General Description

The Resistor,variable,wire Wound,non, cataloged under National Stock Number 5905-00-651-1639, 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 29 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-651-1639
Primary Part Number1277398
Item NameResistor,variable,wire Wound,non
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Electrical Resistance Per Section8.170 KILOHMS 2ND SECTION
Shaft StyleROUND, SLOTTED
Section Quantity2
Pilot Length0.0620 INCHES NOMINAL IN
Mounting Lip Diameter1.4380 INCHES NOMINAL IN
Maximum Starting Torque1.60 INCH-OUNCES IN
Actuator TypeSINGLE SHAFT
Shaft End Play0.00100 INCHES IN
Shaft Radial Play0.0025 INCHES IN
Maximum Running Torque1.10 INCH-OUNCES IN
Shaft Runout0.001 INCHES IN
Effective Electrical Rotation in Deg Angular Rotation48.0 NOMINAL
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Terminal Type and Quantity6 SOLDER STUD
Power Dissipation Rating Per Section in Watts2.0 FREE AIR SINGLE SECTION
Resistance Tolerance Per Section in Percent-5.0 TO 5.0 2ND SECTION
Actuator Travel Control FeatureSTOPS
Ambient Temp in Deg Celsius Per Section at Full Rated Power65.0 SINGLE SECTION
Overall Diameter1.453 INCHES MAXIMUM IN
Rotary Actuator Travel in Angular Deg349.0 MINIMUM
Body StyleCYLINDRICAL SERVO MOUNTED
Ambient Temp in Deg Celsius Per Section at Zero Percent Rated Power125.0 SINGLE SECTION
Bearing TypeBALL SHAFT
Body Length1.580 INCHES MAXIMUM IN
Pilot Diameter1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM IN
Resistance Tolerance Per Section in Percent-5.0 TO 5.0 1ST SECTION
Shaft Length0.657 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
Electrical Resistance Per Section1.360 KILOHMS 1ST SECTION
Shaft Diameter0.2494 INCHES MINIMUM AND 0.2497 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5940-00-144-24332596205 INTERCHANGEABLE
Splice,conductor
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5905-00-333-891267302 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Cae Usa Inc.
9905-01-048-5764 INTERCHANGEABLE
Plate,identification
Cross-Reference Index
Part NumberManufacturer
749-6036 Bunker Ramo Corp Amphenol Controls Div (USA)
170-128 Vishay Sprague Inc (USA)
67-302 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
1277398 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
5940-00-144-2433INTERCHANGEABLE
SPLICE,CONDUCTOR
2596205
5905-00-333-8912INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
67302
9905-01-048-5764INTERCHANGEABLE
PLATE,IDENTIFICATION

Frequently Asked Questions

What is NSN 5905-00-651-1639?

NSN 5905-00-651-1639 is a Resistor,variable,wire Wound,non, 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 5905-00-651-1639?

NSN 5905-00-651-1639 has 4 cross-referenced part numbers: 749-6036 (Bunker Ramo Corp Amphenol Controls Div), 170-128 (Vishay Sprague Inc), 67-302 (Lockheed Martin Corporation Div Rms - Mitchel Field), 1277398 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).

What NSN replaces 5905-00-651-1639?

There are 3 known substitutes for 5905-00-651-1639: 5940-00-144-2433, 5905-00-333-8912, 9905-01-048-5764. Verify interchangeability with system specifications before substitution.

What are the specifications of 1277398?

Key specifications for 1277398: Electrical Resistance Per Section: 8.170 KILOHMS 2ND SECTION; Shaft Style: ROUND, SLOTTED; Section Quantity: 2; Pilot Length: 0.0620 INCHES NOMINAL IN. 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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