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Technical Data Sheet
PartsTable / COMPONENT / 51-216E18-579A
51-216E18-579A ✓ 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,SLEEVE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 937 OR COPPER ALLOY 932 OVERALL, corner_shape: CHAMFERED INSIDE RIGHT CORNER, flange_width: 0.1719 INCHES MINIMUM AND 0.2031 INCHES MAXIMUM IN, overall_length: 1.9219 INCHES MINIMUM AND 1.9531 INCHES MAXIMUM IN, surface_finish: 45.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY, hardness_rating: 63.0 BRINELL STANDARD MINIMUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-540-7287, 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
51-216E18-579A
NSN: 3120-00-540-7287
FSC: 3120
CAGE: 94703 — AMFAC DISTRIBUTION CORP AMFAC SUPPLY CO AMFAC FLUID POWER (USA)
SPECIFICATIONS
materialCOPPER ALLOY 937 OR COPPER ALLOY 932 OVERALL
corner_shapeCHAMFERED INSIDE RIGHT CORNER
flange_width0.1719 INCHES MINIMUM AND 0.2031 INCHES MAXIMUM IN
overall_length1.9219 INCHES MINIMUM AND 1.9531 INCHES MAXIMUM IN
surface_finish45.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
hardness_rating63.0 BRINELL STANDARD MINIMUM OVERALL
style_designatorSOLID, EXTERNAL FLANGE ONE END
body_inside_diameter1.1572 INCHES MINIMUM AND 1.1578 INCHES MAXIMUM IN
body_outside_diameter1.4977 INCHES MINIMUM AND 1.4980 INCHES MAXIMUM IN
flange_outside_diameter1.6250 INCHES MINIMUM AND 1.6280 INCHES MAXIMUM IN
material_document_and_classificationSAE ASSN STD ALL MATERIAL RESPONSES OVERALL
NSN3120-00-540-7287
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 51-216E18-579A · 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
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGE ONE END
•
MATERIAL: COPPER ALLOY 937 OR COPPER ALLOY 932 OVERALL
•
CORNER SHAPE: CHAMFERED LEFT FLANGE OUTSIDE RIGHT CORNER
•
BODY OUTSIDE DIAMETER: 1.4977 INCHES MINIMUM AND 1.4980 INCHES MAXIMUM IN
•
HARDNESS RATING: 63.0 BRINELL STANDARD MINIMUM OVERALL
•
BODY INSIDE DIAMETER: 1.1572 INCHES MINIMUM AND 1.1578 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSOLID, EXTERNAL FLANGE ONE END
MATERIALCOPPER ALLOY 937 OR COPPER ALLOY 932 OVERALL
CORNER SHAPECHAMFERED LEFT FLANGE OUTSIDE RIGHT CORNER
OVERALL LENGTH1.9219 INCHES MINIMUM AND 1.9531 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER1.4977 INCHES MINIMUM AND 1.4980 INCHES MAXIMUM IN
HARDNESS RATING63.0 BRINELL STANDARD MINIMUM OVERALL
CORNER SHAPERELIEF GROOVE LEFT FLANGE BODY CORNER
BODY INSIDE DIAMETER1.1572 INCHES MINIMUM AND 1.1578 INCHES MAXIMUM IN
FLANGE WIDTH0.1719 INCHES MINIMUM AND 0.2031 INCHES MAXIMUM IN
FLANGE OUTSIDE DIAMETER1.6250 INCHES MINIMUM AND 1.6280 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
52610Interchangeable
interchangeable cross-reference
interchangeable
599-591-1Interchangeable
interchangeable cross-reference
interchangeable
579AInterchangeable
interchangeable cross-reference
interchangeable
579Interchangeable
interchangeable cross-reference
interchangeable
CT927Interchangeable
interchangeable cross-reference
interchangeable
579-B-BULKInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 51-216E18-579A?
51-216E18-579A is a BEARING,SLEEVE.
What parts can replace 51-216E18-579A?
There are 10 known substitutes for 51-216E18-579A: 52610, 599-591-1, 579A and 7 more. Substitute compatibility should be verified for your specific system.
Is 51-216E18-579A still available?
51-216E18-579A is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026