PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

0684-1221Resistor,fixed,composition

Keysight Technologies Inc · NSN 5905-00-407-2151 · FSC 5905 · No Item Name Available
Verified by PartsTable
NSN 5905-00-407-2151 — this item is cataloged by the U.S. Government under National Stock Number 5905-00-407-2151. Primary manufacturer part number: 0684-1221.
Features
  • Resistor,fixed,composition — FSC 5905
  • Style Designator: AXIAL TERMINAL EACH END
  • Power Dissipation Rating in Watts: 0.250 FREE AIR
  • Terminal Type: WIRE LEAD
  • Terminal Length: 1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
  • Cubic Measure: 0.002 CUBIC INCHES
  • Reliability Indicator: NOT ESTABLISHED
  • Inclosure Type: ENCAPSULATED
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
General Description

The Resistor,fixed,composition, cataloged under National Stock Number 5905-00-407-2151, 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 Keysight Technologies Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 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
NSN5905-00-407-2151
Primary Part Number0684-1221
Item NameResistor,fixed,composition
FSC / FSG5905 / 59 — No Item Name Available
ManufacturerKeysight Technologies Inc
StatusACTIVE
Style DesignatorAXIAL TERMINAL EACH END
Power Dissipation Rating in Watts0.250 FREE AIR
Terminal TypeWIRE LEAD
Terminal Length1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN
Cubic Measure0.002 CUBIC INCHES
Reliability IndicatorNOT ESTABLISHED
Inclosure TypeENCAPSULATED
Ambient Temp in Deg Celsius at Zero Percent Rated Power150.0
Body Length0.250 INCHES NOMINAL IN
Body Diameter0.090 INCHES NOMINAL IN
Ambient Temp at Full Rated Power70.0 CELSIUS DEGC
Resistance Tolerance in Percent-10.000 TO 10.000
Electrical Resistance1.200 KILOHMS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5905-00-131-1255 INTERCHANGEABLE
Resistor,fixed,composition
5905-00-919-5713CB1225 INTERCHANGEABLE
Resistor,fixed,composition
Rockwell Automation, Inc. Dba Rockwell Automation
5905-01-145-3031 INTERCHANGEABLE
Resistor,fixed,film
Cross-Reference Index
Part NumberManufacturer
V1051Z3212K Siemens Schweiz Ag Dba Siemens Switzerland Ltd. (CHE)
0684-1221 PRIMARY Keysight Technologies Inc (USA)
0684-1221 Hewlett-Packard Company Dba HP (USA)
0684-1221 Keysight Technologies, Inc. (USA)
CB1221 Rockwell Automation, Inc. Dba Rockwell Automation (USA)
CR-25 1-4-5P-1K2 North American Philips Corp Philips Components Discrete Products Div (USA)
CR25-1201K North American Philips Corp Philips Components Discrete Products Div (USA)
R-25J R-Ohm Corp (USA)
4702-0122-003 Viavi Solutionsllc (USA)
0684-1221 R-Ohm Corp (USA)
Related Parts
5905-00-131-1255INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
5905-00-919-5713INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
CB1225
5905-01-145-3031INTERCHANGEABLE
RESISTOR,FIXED,FILM

Frequently Asked Questions

What is NSN 5905-00-407-2151?

NSN 5905-00-407-2151 is a Resistor,fixed,composition, manufactured by Keysight Technologies Inc, classified under FSC 5905 (No Item Name Available). Status: active.

What are the part numbers for NSN 5905-00-407-2151?

NSN 5905-00-407-2151 has 10 cross-referenced part numbers: V1051Z3212K (Siemens Schweiz Ag Dba Siemens Switzerland Ltd.), 0684-1221 (Keysight Technologies Inc), 0684-1221 (Hewlett-Packard Company Dba HP), 0684-1221 (Keysight Technologies, Inc.), CB1221 (Rockwell Automation, Inc. Dba Rockwell Automation) and 5 more.

What NSN replaces 5905-00-407-2151?

There are 3 known substitutes for 5905-00-407-2151: 5905-00-131-1255, 5905-00-919-5713, 5905-01-145-3031. Verify interchangeability with system specifications before substitution.

What are the specifications of 0684-1221?

Key specifications for 0684-1221: Style Designator: AXIAL TERMINAL EACH END; Power Dissipation Rating in Watts: 0.250 FREE AIR; Terminal Type: WIRE LEAD; Terminal Length: 1.375 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN. 13 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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