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Technical Data Sheet
L21581 ✓ Verified by PartsTable
· COMPONENT
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

RESISTOR,VARIABLE,WIRE WOUND,NON. Key specifications include shape: ROUND, material: STEEL BODY, overall_height: 4.000 INCHES NOMINAL IN, mounting_method: SCREW, overall_diameter: 4.062 INCHES NOMINAL IN, surface_treatment: ENAMEL BAKED BODY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6210-00-137-2448, 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
L21581
NSN: 6210-00-137-2448
FSC: 6210
CAGE: 08621 — SWIVELIER COMPANY INC DBA POINT ELECTRIC DIV (USA)
SPECIFICATIONS
shapeROUND
materialSTEEL BODY
overall_height4.000 INCHES NOMINAL IN
mounting_methodSCREW
overall_diameter4.062 INCHES NOMINAL IN
surface_treatmentENAMEL BAKED BODY
voltage_rating_in_volts250.0 AC NOMINAL
terminal_type_and_quantity2 WIRE LEAD
lamp_base_type_accommodatedMEDIUM SCREW
illumination_directing_device_typeREFLECTOR
lamp_type_accommodated_and_quantity1 INCANDESCENT
NSN6210-00-137-2448
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RESISTOR,VARIABLE,WIRE WOUND,NON TITLE COMPONENT PN L21581 MFR RESISTOR,VARIABLE,WIRE
KEY FEATURES
SURFACE TREATMENT: ENAMEL BAKED BODY
OVERALL DIAMETER: 4.062 INCHES NOMINAL IN
MOUNTING METHOD: SCREW
LAMP TYPE ACCOMMODATED AND QUANTITY: 1 INCANDESCENT
LAMP BASE TYPE ACCOMMODATED: MEDIUM SCREW
ILLUMINATION DIRECTING DEVICE TYPE: REFLECTOR
VOLTAGE RATING IN VOLTS: 250.0 AC NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTENAMEL BAKED BODY
OVERALL HEIGHT4.000 INCHES NOMINAL IN
OVERALL DIAMETER4.062 INCHES NOMINAL IN
MOUNTING METHODSCREW
LAMP TYPE ACCOMMODATED AND QUANTITY1 INCANDESCENT
LAMP BASE TYPE ACCOMMODATEDMEDIUM SCREW
ILLUMINATION DIRECTING DEVICE TYPEREFLECTOR
VOLTAGE RATING IN VOLTS250.0 AC NOMINAL
SHAPEROUND
MATERIALSTEEL BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2154-1Interchangeable
interchangeable cross-reference
interchangeable
8148650Interchangeable
interchangeable cross-reference
interchangeable
BB27301Interchangeable
interchangeable cross-reference
interchangeable
85666BSInterchangeable
interchangeable cross-reference
interchangeable
18155Interchangeable
interchangeable cross-reference
interchangeable
RL67Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is L21581?
L21581 is a RESISTOR,VARIABLE,WIRE WOUND,NON.
What parts can replace L21581?
There are 12 known substitutes for L21581: 2154-1, 8148650, BB27301 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for L21581?
L21581 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6210-00-137-2448. This indicates validated use in U.S. government and defense supply chains.
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