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Technical Data Sheet
PartsTable / COMPONENT / MS17811-9
MS17811-9 ✓ 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: 0.5020 INCHES MINIMUM AND 0.5070 INCHES MAXIMUM IN, corner_shape: SQUARE ALL CORNERS, outside_diameter: 1.1250 INCHES NOMINAL IN, style_designator: ROUND, features_provided: CASEHARDENED, overall_thickness: 0.0620 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 3120-00-487-4726, 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
MS17811-9
NSN: 3120-00-487-4726
FSC: 3120
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
diameter0.5020 INCHES MINIMUM AND 0.5070 INCHES MAXIMUM IN
corner_shapeSQUARE ALL CORNERS
outside_diameter1.1250 INCHES NOMINAL IN
style_designatorROUND
features_providedCASEHARDENED
overall_thickness0.0620 INCHES NOMINAL IN
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN3120-00-487-4726
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MS17811-9 · 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
•
CORNER SHAPE: SQUARE ALL CORNERS
•
CENTER HOLE SHAPE STYLE: ROUND
•
DIAMETER: 0.5020 INCHES MINIMUM AND 0.5070 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
FEATURES PROVIDED: CASEHARDENED
•
STYLE DESIGNATOR: ROUND
•
OVERALL THICKNESS: 0.0620 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.1250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE ALL CORNERS
CENTER HOLE SHAPE STYLEROUND
DIAMETER0.5020 INCHES MINIMUM AND 0.5070 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
FEATURES PROVIDEDCASEHARDENED
STYLE DESIGNATORROUND
OVERALL THICKNESS0.0620 INCHES NOMINAL IN
OUTSIDE DIAMETER1.1250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
14551102 PIECEInterchangeable
interchangeable cross-reference
interchangeable
MS17811Interchangeable
interchangeable cross-reference
interchangeable
MS17811-11Interchangeable
interchangeable cross-reference
interchangeable
MS17811-17Interchangeable
interchangeable cross-reference
interchangeable
MS17811-8Interchangeable
interchangeable cross-reference
interchangeable
MS17811-18Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS17811-9?
MS17811-9 is a BEARING,WASHER,THRUST.
What parts can replace MS17811-9?
There are 15 known substitutes for MS17811-9: 14551102 PIECE, MS17811, MS17811-11 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS17811-9?
MS17811-9 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-487-4726. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026