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Technical Data Sheet
521231 ✓ Verified by PartsTable
· MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY BODY, leg_length: 5.000 INCHES NOMINAL CENTER BULKHEAD IN, seat_angle: 37.0 DEGREES FIRST END, body_length: 0.375 INCHES NOMINAL IN, temp_rating: -65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF, bearing_type: SLEEVE, REMOVABLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5905-00-107-2989, indicating validated use in U.S.

government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels. Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
MRO MRO_GENERAL 521231
NSN: 5905-00-107-2989
FSC: 5905
CAGE: 00000
SPECIFICATIONS
materialALUMINUM ALLOY BODY
leg_length5.000 INCHES NOMINAL CENTER BULKHEAD IN
seat_angle37.0 DEGREES FIRST END
body_length0.375 INCHES NOMINAL IN
temp_rating-65.0 FAHRENHEIT AND 250.0 FAHRENHEIT SINGLE RESPONSE DEGF
bearing_typeSLEEVE, REMOVABLE
thread_class3B FIRST END
body_diameter0.138 INCHES NOMINAL IN
terminal_typeWIRE LEAD
inclosure_typeHERMETICALLY SEALED
vacuum_in_torr50.8
connection_typeTHREADED INTERNAL TUBE FIRST END
NSN5905-00-107-2989
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,FIXED,COMPOSITION TITLE COMPONENT PN 521231 MFR RESISTOR,FIXED,COMPOSI
KEY FEATURES
STYLE DESIGNATOR: AXIAL TERMINAL EACH END
BODY DIAMETER: 0.138 INCHES NOMINAL IN
POWER DISSIPATION RATING IN WATTS: 0.500 FREE AIR
AMBIENT TEMP AT FULL RATED POWER: 70.0 CELSIUS DEGC
BODY LENGTH: 0.375 INCHES NOMINAL IN
INCLOSURE TYPE: HERMETICALLY SEALED
AMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER: 130.0
TERMINAL TYPE: WIRE LEAD
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORAXIAL TERMINAL EACH END
BODY DIAMETER0.138 INCHES NOMINAL IN
POWER DISSIPATION RATING IN WATTS0.500 FREE AIR
AMBIENT TEMP AT FULL RATED POWER70.0 CELSIUS DEGC
BODY LENGTH0.375 INCHES NOMINAL IN
INCLOSURE TYPEHERMETICALLY SEALED
AMBIENT TEMP IN DEG CELSIUS AT ZERO PERCENT RATED POWER130.0
TERMINAL TYPEWIRE LEAD
RESISTANCE TOLERANCE IN PERCENT-10.000 TO 10.000
ELECTRICAL RESISTANCE3.300 MEGOHMS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
DEB-3355Interchangeable
interchangeable cross-reference
interchangeable
RCR20G335JPInterchangeable
interchangeable cross-reference
interchangeable
5053CX3M300JInterchangeable
interchangeable cross-reference
interchangeable
H1420Interchangeable
interchangeable cross-reference
interchangeable
198Interchangeable
interchangeable cross-reference
interchangeable
7-0053Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 521231?
521231 is a RESISTOR,FIXED,COMPOSITION. It is classified as a MRO (MRO_GENERAL).
What parts can replace 521231?
There are 27 known substitutes for 521231: DEB-3355, RCR20G335JP, 5053CX3M300J and 24 more. Substitute compatibility should be verified for your specific system.
Is 521231 still available?
521231 is currently cancelled.
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