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PartsTable / COMPONENT / K21020
K21020 ✓ 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 K21020 is a the manufacturer industrial component. Key specifications include material: STEEL, construction: ONE-PIECE, hole_diameter: 0.406 INCHES NOMINAL IN, overall_width: 4.000 INCHES NOMINAL IN, style_designator: NON-CIRCULAR W/APERTURE, aperture_diameter: 2.531 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-582-3388, 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
K21020
NSN: 5365-00-582-3388
FSC: 5365
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
constructionONE-PIECE
hole_diameter0.406 INCHES NOMINAL IN
overall_width4.000 INCHES NOMINAL IN
style_designatorNON-CIRCULAR W/APERTURE
aperture_diameter2.531 INCHES NOMINAL IN
bolt_hole_quantity4
bolt_circle_diameter3.250 INCHES NOMINAL IN
outside_corner_radius0.375 INCHES NOMINAL IN
outside_corner_inverted_radius0.375 INCHES NOMINAL IN
side_radius_from_gasket_center1.625 INCHES NOMINAL IN
NSN5365-00-582-3388
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available K21020 TITLE COMPONENT PN K21020 MFR K21020
KEY FEATURES
•
OUTSIDE CORNER INVERTED RADIUS: 0.375 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 3.250 INCHES NOMINAL IN
•
CONSTRUCTION: ONE-PIECE
•
APERTURE DIAMETER: 2.531 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 0.375 INCHES NOMINAL IN
•
SIDE RADIUS FROM GASKET CENTER: 1.625 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE CORNER INVERTED RADIUS0.375 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER3.250 INCHES NOMINAL IN
CONSTRUCTIONONE-PIECE
OVERALL WIDTH4.000 INCHES NOMINAL IN
APERTURE DIAMETER2.531 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.375 INCHES NOMINAL IN
SIDE RADIUS FROM GASKET CENTER1.625 INCHES NOMINAL IN
MATERIALSTEEL
BOLT HOLE QUANTITY4
HOLE DIAMETER0.406 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
1644Interchangeable
interchangeable cross-reference
interchangeable
9743-B-0632-37Interchangeable
interchangeable cross-reference
interchangeable
8254Interchangeable
interchangeable cross-reference
interchangeable
482241Interchangeable
interchangeable cross-reference
interchangeable
1644AInterchangeable
interchangeable cross-reference
interchangeable
405004-001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K21020?
K21020 is a K21020.
What parts can replace K21020?
There are 16 known substitutes for K21020: 1644, 9743-B-0632-37, 8254 and 13 more. Substitute compatibility should be verified for your specific system.
Is K21020 still available?
K21020 is currently cancelled.
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Last verified: July 2026