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Technical Data Sheet
PartsTable / COMPONENT / S1510-21399
S1510-21399 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include diameter: 0.4980 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN, material: ALUMINUM ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, outside_diameter: 1.8650 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN, style_designator: ROUND, overall_thickness: 0.0930 INCHES MINIMUM AND 0.0940 INCHES MAXIMUM 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 3120-00-631-4517, 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
S1510-21399
NSN: 3120-00-631-4517
FSC: 3120
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
diameter0.4980 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
materialALUMINUM ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
outside_diameter1.8650 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
style_designatorROUND
overall_thickness0.0930 INCHES MINIMUM AND 0.0940 INCHES MAXIMUM IN
surface_conditionGROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN3120-00-631-4517
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: S1510-21399 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL THICKNESS: 0.0930 INCHES MINIMUM AND 0.0940 INCHES MAXIMUM IN
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
STYLE DESIGNATOR: ROUND
•
SURFACE CONDITION: GROUND
•
CORNER SHAPE: SQUARE ALL CORNERS
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
DIAMETER: 0.4980 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL THICKNESS0.0930 INCHES MINIMUM AND 0.0940 INCHES MAXIMUM IN
MATERIALALUMINUM ALLOY OVERALL
STYLE DESIGNATORROUND
SURFACE CONDITIONGROUND
CORNER SHAPESQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
DIAMETER0.4980 INCHES MINIMUM AND 0.5020 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
OUTSIDE DIAMETER1.8650 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
5074Interchangeable
interchangeable cross-reference
interchangeable
C902-3BAInterchangeable
interchangeable cross-reference
interchangeable
980060-03Interchangeable
interchangeable cross-reference
interchangeable
5074AInterchangeable
interchangeable cross-reference
interchangeable
7310276Interchangeable
interchangeable cross-reference
interchangeable
050740000Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S1510-21399?
S1510-21399 is a BEARING,WASHER,THRUST.
What parts can replace S1510-21399?
There are 15 known substitutes for S1510-21399: 5074, C902-3BA, 980060-03 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S1510-21399?
S1510-21399 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-631-4517. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026