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K21507 — K21507

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

K21507: K21507.

The K21507 is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY, construction: ONE-PIECE, hole_diameter: 0.406 INCHES NOMINAL IN, overall_width: 4.890 INCHES NOMINAL IN, style_designator: NON-CIRCULAR W/APERTURE, aperture_diameter: 3.781 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5365-00-708-7702, 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
K21507
NSN: 5365-00-708-7702
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialALUMINUM ALLOY
constructionONE-PIECE
hole_diameter0.406 INCHES NOMINAL IN
overall_width4.890 INCHES NOMINAL IN
style_designatorNON-CIRCULAR W/APERTURE
aperture_diameter3.781 INCHES NOMINAL IN
bolt_hole_quantity6
bolt_circle_diameter4.140 INCHES NOMINAL IN
outside_corner_radius0.375 INCHES NOMINAL IN
outside_corner_inverted_radius0.187 INCHES NOMINAL IN
side_radius_from_gasket_center2.250 INCHES NOMINAL IN
NSN5365-00-708-7702
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available K21507 TITLE COMPONENT PN K21507 MFR K21507
KEY FEATURES
•
SIDE RADIUS FROM GASKET CENTER: 2.250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NON-CIRCULAR W/APERTURE
•
OUTSIDE CORNER INVERTED RADIUS: 0.187 INCHES NOMINAL IN
•
APERTURE DIAMETER: 3.781 INCHES NOMINAL IN
•
BOLT HOLE QUANTITY: 6
•
BOLT CIRCLE DIAMETER: 4.140 INCHES NOMINAL IN
•
OUTSIDE CORNER RADIUS: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SIDE RADIUS FROM GASKET CENTER2.250 INCHES NOMINAL IN
STYLE DESIGNATORNON-CIRCULAR W/APERTURE
OVERALL WIDTH4.890 INCHES NOMINAL IN
OUTSIDE CORNER INVERTED RADIUS0.187 INCHES NOMINAL IN
APERTURE DIAMETER3.781 INCHES NOMINAL IN
BOLT HOLE QUANTITY6
BOLT CIRCLE DIAMETER4.140 INCHES NOMINAL IN
OUTSIDE CORNER RADIUS0.375 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY
HOLE DIAMETER0.406 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
31D47Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is K21507?
K21507 is a K21507.
What parts can replace K21507?
There is 1 known substitute for K21507: 31D47. Substitute compatibility should be verified for your specific system.
What is the NSN for K21507?
K21507 is cataloged in the U.S. Government catalog under NSN 5365-00-708-7702. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.