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Technical Data Sheet
21578 ✓ 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

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 SCREENING, duty_type: CONTINUOUS, body_shape: ROUND, overall_width: 3.500 INCHES NOMINAL IN, overall_height: 2.688 INCHES NOMINAL IN, overall_length: 11.125 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-930-5189, 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
21578
NSN: 4320-00-930-5189
FSC: 4320
CAGE: 38455 — ITT MARLOW A UNIT OF ITT PUMPS AND COMPRESSORS DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 304 SCREENING
duty_typeCONTINUOUS
body_shapeROUND
coil_quantity1
overall_width3.500 INCHES NOMINAL IN
overall_height2.688 INCHES NOMINAL IN
overall_length11.125 INCHES NOMINAL IN
overall_diameter6.000 INCHES NOMINAL IN
special_featuresNAME ASSIGNED BY CONTROLLING AGENCY - FILTER SCREEN ASSEMBLY
winding_quantity1
surface_treatmentALUMINUM ALLOY
device_design_typeDIRECTIONAL VANE
NSN4320-00-930-5189
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RELAY,ELECTROMAGNETIC TITLE COMPONENT PN 21578 MFR RELAY,ELECTROMAGNETIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
21578BInterchangeable
interchangeable cross-reference
interchangeable
21578Interchangeable
interchangeable cross-reference
interchangeable
5945PL0921435Interchangeable
interchangeable cross-reference
interchangeable
400SXInterchangeable
interchangeable cross-reference
interchangeable
477Interchangeable
interchangeable cross-reference
interchangeable
5209252Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21578?
21578 is a RELAY,ELECTROMAGNETIC.
What parts can replace 21578?
There are 7 known substitutes for 21578: 21578B, 21578, 5945PL0921435 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21578?
21578 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4320-00-930-5189. This indicates validated use in U.S. government and defense supply chains.
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