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Technical Data Sheet
PartsTable / COMPONENT / ML18A
ML18A ✓ 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 LOCK,DRIVE SHAFT,DIFFERENTIAL is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.8550 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.7475 INCHES MINIMUM AND 0.7485 INCHES MAXIMUM IN, body_outside_diameter: 0.8775 INCHES MINIMUM AND 0.8785 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-414-7314, 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
ML18A
NSN: 3120-00-414-7314
FSC: 3120
CAGE: 16460 — MARINE ENGINE SPECIALTIES DIV OF MESCO TECTONICS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.8550 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.7475 INCHES MINIMUM AND 0.7485 INCHES MAXIMUM IN
body_outside_diameter0.8775 INCHES MINIMUM AND 0.8785 INCHES MAXIMUM IN
NSN3120-00-414-7314
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: ML18A · 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, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL: COPPER ALLOY OVERALL
•
CORNER SHAPE: SQUARE ALL CORNERS
•
BODY OUTSIDE DIAMETER: 0.8775 INCHES MINIMUM AND 0.8785 INCHES MAXIMUM IN
•
BODY INSIDE DIAMETER: 0.7475 INCHES MINIMUM AND 0.7485 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIALCOPPER ALLOY OVERALL
MATERIALLUBRICANT LUBRICATION
CORNER SHAPESQUARE ALL CORNERS
OVERALL LENGTH0.8550 INCHES MINIMUM AND 0.8650 INCHES MAXIMUM IN
BODY OUTSIDE DIAMETER0.8775 INCHES MINIMUM AND 0.8785 INCHES MAXIMUM IN
BODY INSIDE DIAMETER0.7475 INCHES MINIMUM AND 0.7485 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
15894Interchangeable
interchangeable cross-reference
interchangeable
M257Interchangeable
interchangeable cross-reference
interchangeable
MILE MARKER 302Interchangeable
interchangeable cross-reference
interchangeable
14070372Interchangeable
interchangeable cross-reference
interchangeable
17675-600Interchangeable
interchangeable cross-reference
interchangeable
TOE CREST 8154A LRG LFTInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ML18A?
ML18A is a LOCK,DRIVE SHAFT,DIFFERENTIAL.
What parts can replace ML18A?
There are 8 known substitutes for ML18A: 15894, M257, MILE MARKER 302 and 5 more. Substitute compatibility should be verified for your specific system.
Is ML18A still available?
ML18A 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