PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F20-122GResistor,fixed,film

Welwyn International Inc · NSN 5905-00-727-9750 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-727-9750 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-727-9750. Primary manufacturer part number: F20-122G.
Features
  • Resistor,fixed,film — FSC 5905
  • Temp Coefficient of Resistance in Ppm Per Deg Celsius: -200.0 TO 200.0
  • Resistance Tolerance in Percent: -2.000 TO 2.000
  • Temp Range of Temp Coefficient in Deg Celsius: -55.0 TO 150.0
  • Ambient Temp in Deg Celsius at Zero Percent Rated Power: 150.0
  • Electrical Resistance: 1.200 KILOHMS
  • Ambient Temp at Full Rated Power: 70.0 CELSIUS DEGC
  • Inclosure Type: ENCAPSULATED
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor,fixed,film, cataloged under National Stock Number 5905-00-727-9750, 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 Welwyn International Inc. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 10 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5905-00-727-9750
Primary Part NumberF20-122G
Item NameResistor,fixed,film
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerWelwyn International Inc
StatusCANCELLED
Temp Coefficient of Resistance in Ppm Per Deg Celsius-200.0 TO 200.0
Resistance Tolerance in Percent-2.000 TO 2.000
Temp Range of Temp Coefficient in Deg Celsius-55.0 TO 150.0
Ambient Temp in Deg Celsius at Zero Percent Rated Power150.0
Electrical Resistance1.200 KILOHMS
Ambient Temp at Full Rated Power70.0 CELSIUS DEGC
Inclosure TypeENCAPSULATED
Test Data Document81349-MIL-R-22684/2 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Power Dissipation Rating in Watts0.500 FREE AIR
Reliability IndicatorNOT ESTABLISHED
Body Diameter0.161 INCHES NOMINAL IN
Body Length0.416 INCHES NOMINAL IN
Terminal TypeWIRE LEAD
Style DesignatorAXIAL TERMINAL EACH END
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5998-00-115-7309 INTERCHANGEABLE
Circuit Card Assembly
2805-00-354-643931-475 INTERCHANGEABLE
Rotor,engine Poppet Valve
Dresser Industries Inc Leroi Div
2940-00-541-3499376376R92 INTERCHANGEABLE
Filter Element,fluid
Dressta North America Ltd
5905-00-926-8707 INTERCHANGEABLE
Resistor,fixed,film
Cross-Reference Index
Part NumberManufacturer
F20-122G Welwyn International Inc (USA)
352250000759 Thales Nederland (NLD)
947934-1222 Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
VBE631-1K2-2PCT Thales Nederland (NLD)
RL20S122G Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4171402-069 Raytheon Company Div Rmd Strategic (USA)
RC38 Nautel Limited (CAN)
MILR22684-2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M22684-02-0101 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
200133-101 Bae Systems Information and Electronic Systems Integration Inc. Dba Bae Systems (USA)
947934-1222 Litton Systems Inc. Div Navigation Systems Division (USA)
5905PL0802652 Jednolity Indeks Materialowy - Uniform Material Index (POL)
4171402-69 Raytheon Company Div Rmd Strategic (USA)
620350 Systron-Donner Corp Microwave/instrument Div (USA)
Related Parts
5998-00-115-7309INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
2805-00-354-6439INTERCHANGEABLE
ROTOR,ENGINE POPPET VALVE
31-475
2940-00-541-3499INTERCHANGEABLE
FILTER ELEMENT,FLUID
376376R92
5905-00-926-8707INTERCHANGEABLE
RESISTOR,FIXED,FILM

Frequently Asked Questions

What is NSN 5905-00-727-9750?

NSN 5905-00-727-9750 is a Resistor,fixed,film, manufactured by Welwyn International Inc, classified under FSC 5905 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5905-00-727-9750?

NSN 5905-00-727-9750 has 14 cross-referenced part numbers: F20-122G (Welwyn International Inc), 352250000759 (Thales Nederland), 947934-1222 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp), VBE631-1K2-2PCT (Thales Nederland), RL20S122G (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 9 more.

What NSN replaces 5905-00-727-9750?

There are 4 known substitutes for 5905-00-727-9750: 5998-00-115-7309, 2805-00-354-6439, 2940-00-541-3499 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of F20-122G?

Key specifications for F20-122G: Temp Coefficient of Resistance in Ppm Per Deg Celsius: -200.0 TO 200.0; Resistance Tolerance in Percent: -2.000 TO 2.000; Temp Range of Temp Coefficient in Deg Celsius: -55.0 TO 150.0; Ambient Temp in Deg Celsius at Zero Percent Rated Power: 150.0. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5905-00-727-9750 still in active supply?

NSN 5905-00-727-9750 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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