PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1277501Resistor,variable,wire Wound,pre

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5905-00-651-1640 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-651-1640 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-651-1640. Primary manufacturer part number: 1277501.
Features
  • Resistor,variable,wire Wound,pre — FSC 5905
  • Maximum Starting Torque: 3.40 INCH-OUNCES IN
  • Undercut Diameter: 1.312 INCHES NOMINAL IN
  • Terminal Location: RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
  • Actuator Travel Control Feature: STOPS
  • Function Characteristic Per Section: SINGLE SECTION LINEAR
  • Terminal Type and Quantity: 15 SOLDER STUD
  • Power Dissipation Rating Per Section in Watts: 2.0 FREE AIR SINGLE SECTION
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 5905-00-651-1640, 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 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-651-1640
Primary Part Number1277501
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
Maximum Starting Torque3.40 INCH-OUNCES IN
Undercut Diameter1.312 INCHES NOMINAL IN
Terminal LocationRADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED
Actuator Travel Control FeatureSTOPS
Function Characteristic Per SectionSINGLE SECTION LINEAR
Terminal Type and Quantity15 SOLDER STUD
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
Function Conformity Per SectionSINGLE SECTION INDEPENDENT LINEARITY
Resistance Tolerance Per Section in Percent-5.0 TO 5.0 1ST SECTION AND -5.0 TO 5.0 2ND SECTION AND -5.0 TO 5.0 3RD SECTION AND -5.0 TO 5.0 4TH SECTION AND -5.0 TO 5.0 5TH SECTION
Electrical Resistance Per Section9.750 KILOHMS 1ST SECTION AND 9.750 KILOHMS 2ND SECTION AND 9.750 KILOHMS 3RD SECTION AND 9.750 KILOHMS 4TH SECTION AND 39.000 KILOHMS 5TH SECTION
Overall Diameter1.706 INCHES MAXIMUM IN
Shaft Diameter0.249 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
Reliability IndicatorNOT ESTABLISHED
Features ProvidedNONMETALLIC SHAFT
Mounting Lip Depth0.0930 INCHES NOMINAL IN
Shaft Length0.657 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN
Actuator TypeSINGLE SHAFT
Mounting MethodCLAMP RING(S)
Function Conformity Tolerance Per Section-0.65 TO 0.65 ALL SECTIONS
Body Diameter1.453 INCHES MAXIMUM IN
Body StyleCYLINDRICAL SERVO MOUNTED
Pilot Length0.0620 INCHES NOMINAL IN
Rotary Actuator Travel in Angular Deg349.0 MINIMUM
Body Length3.160 INCHES MAXIMUM IN
Effective Electrical Rotation in Deg Angular Rotation345.0 NOMINAL
Pilot Diameter1.3115 INCHES MINIMUM AND 1.3120 INCHES MAXIMUM IN
Mounting Lip Diameter1.4380 INCHES NOMINAL IN
Undercut Width0.0730 INCHES NOMINAL IN
Section Quantity5
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3130-00-210-5398170167 INTERCHANGEABLE
Housing,bearing Unit
Curtiss-Wright Controls, Inc. Div Actuation Division
6240-00-983-2641 INTERCHANGEABLE
Lamp,glow
5315-01-425-62156778300 INTERCHANGEABLE
Pin,spring
Alfa Laval Inc
5120-01-654-1839 INTERCHANGEABLE
Pliers
4820-01-725-49076778327E INTERCHANGEABLE
Valve,ball
Cla-Val Co
Cross-Reference Index
Part NumberManufacturer
1277501 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
67-783 Lockheed Martin Corporation Div Rms - Mitchel Field (USA)
170-167 Vishay Sprague Inc (USA)
170-167 IV-Electronic Klaus Vespermann Kg (DEU)
Related Parts
3130-00-210-5398INTERCHANGEABLE
HOUSING,BEARING UNIT
170167
6240-00-983-2641INTERCHANGEABLE
LAMP,GLOW
5315-01-425-6215INTERCHANGEABLE
PIN,SPRING
6778300
5120-01-654-1839INTERCHANGEABLE
PLIERS
4820-01-725-4907INTERCHANGEABLE
VALVE,BALL
6778327E

Frequently Asked Questions

What is NSN 5905-00-651-1640?

NSN 5905-00-651-1640 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 5905-00-651-1640?

NSN 5905-00-651-1640 has 4 cross-referenced part numbers: 1277501 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 67-783 (Lockheed Martin Corporation Div Rms - Mitchel Field), 170-167 (Vishay Sprague Inc), 170-167 (IV-Electronic Klaus Vespermann Kg).

What NSN replaces 5905-00-651-1640?

There are 5 known substitutes for 5905-00-651-1640: 3130-00-210-5398, 6240-00-983-2641, 5315-01-425-6215 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1277501?

Key specifications for 1277501: Maximum Starting Torque: 3.40 INCH-OUNCES IN; Undercut Diameter: 1.312 INCHES NOMINAL IN; Terminal Location: RADIALLY POSITIONED OVER LESS THAN HALF THE CIRCUMFERENCE LOCATION NOT OTHERWISE SPECIFIED; Actuator Travel Control Feature: STOPS. 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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