PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20721Resistor Assembly

Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company · NSN 5905-00-946-1141 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-946-1141 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-946-1141. Primary manufacturer part number: 20721.
Features
  • Resistor Assembly — FSC 5905
  • Resistor Power Dissipation Rating in Watts: 120.0 AND 60.0
  • Resistance Tolerance in Percent: -5.0 TO 5.0
  • Component Controlling Agency: WARD LEONARD CO.
  • Assembly Construction Method: MOUNTED ON THROUGH BOLT
  • Component Name: RESISTOR
  • Component Quantity: 1
  • Mounting Method: STUD(S)
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor Assembly, cataloged under National Stock Number 5905-00-946-1141, 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 Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5905-00-946-1141
Primary Part Number20721
Item NameResistor Assembly
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerMarathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company
StatusACTIVE
Resistor Power Dissipation Rating in Watts120.0 AND 60.0
Resistance Tolerance in Percent-5.0 TO 5.0
Component Controlling AgencyWARD LEONARD CO.
Assembly Construction MethodMOUNTED ON THROUGH BOLT
Component NameRESISTOR
Component Quantity1
Mounting MethodSTUD(S)
Component RelationshipNOT MATCHED
Mounting ConfigurationONE NO. 10-32 THD STUD 9-1/4 IN. LG IN
Electrical Resistance6.0 OHMS AND 16.0 OHMS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
4820-00-278-655520721 INTERCHANGEABLE
Valve,bleeder,hydraulic System
Mitsubishi Caterpillar Forklift America, Inc
4820-00-391-935620721 INTERCHANGEABLE
Valve,y
Crane Co Div Valve Div
6220-00-886-179120721 INTERCHANGEABLE
Casting Assembly
Grimes Aerospace Company
6515-00-926-2089 INTERCHANGEABLE
Razor,surgical Preparation
1660-00-942-873420721 INTERCHANGEABLE
Stem,valve Assembly
Avox Systems Inc Dba Avox Systems Inc
3040-01-621-60662072-1 INTERCHANGEABLE
Connecting Link,rigid
Tyee Aircraft Inc Div Tyee Aircraft
9150-01-685-768620721 INTERCHANGEABLE
Lubricating Oil,utility
Dahle North America Inc
Cross-Reference Index
Part NumberManufacturer
20721 PRIMARY Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company (USA)
Related Parts
4820-00-278-6555INTERCHANGEABLE
VALVE,BLEEDER,HYDRAULIC SYSTEM
20721
4820-00-391-9356INTERCHANGEABLE
VALVE,Y
20721
6220-00-886-1791INTERCHANGEABLE
CASTING ASSEMBLY
20721
6515-00-926-2089INTERCHANGEABLE
RAZOR,SURGICAL PREPARATION
1660-00-942-8734INTERCHANGEABLE
STEM,VALVE ASSEMBLY
20721
3040-01-621-6066INTERCHANGEABLE
CONNECTING LINK,RIGID
2072-1
9150-01-685-7686INTERCHANGEABLE
LUBRICATING OIL,UTILITY
20721

Frequently Asked Questions

What is NSN 5905-00-946-1141?

NSN 5905-00-946-1141 is a Resistor Assembly, manufactured by Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-946-1141?

NSN 5905-00-946-1141 has 1 cross-referenced part number: 20721 (Marathonnorco Aerospace, Inc. Dba Marathon Power Technologies Company).

What NSN replaces 5905-00-946-1141?

There are 7 known substitutes for 5905-00-946-1141: 4820-00-278-6555, 4820-00-391-9356, 6220-00-886-1791 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20721?

Key specifications for 20721: Resistor Power Dissipation Rating in Watts: 120.0 AND 60.0; Resistance Tolerance in Percent: -5.0 TO 5.0; Component Controlling Agency: WARD LEONARD CO.; Assembly Construction Method: MOUNTED ON THROUGH BOLT. 10 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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