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Technical Data Sheet
PartsTable / COMPONENT / 9G9818
9G9818 ✓ 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 BACKSHELL,ELECTRICAL CONNECTOR is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 0.7800 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.6250 INCHES MINIMUM AND 0.6270 INCHES MAXIMUM IN, body_outside_diameter: 0.7550 INCHES MINIMUM AND 0.7570 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-828-6852, 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
9G9818
NSN: 3120-00-828-6852
FSC: 3120
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length0.7800 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.6250 INCHES MINIMUM AND 0.6270 INCHES MAXIMUM IN
body_outside_diameter0.7550 INCHES MINIMUM AND 0.7570 INCHES MAXIMUM IN
NSN3120-00-828-6852
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 9G9818 · 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
•
BODY OUTSIDE DIAMETER: 0.7550 INCHES MINIMUM AND 0.7570 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY OVERALL
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
BODY INSIDE DIAMETER: 0.6250 INCHES MINIMUM AND 0.6270 INCHES MAXIMUM IN
•
CORNER SHAPE: SQUARE ALL CORNERS
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER0.7550 INCHES MINIMUM AND 0.7570 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY OVERALL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
BODY INSIDE DIAMETER0.6250 INCHES MINIMUM AND 0.6270 INCHES MAXIMUM IN
CORNER SHAPESQUARE ALL CORNERS
OVERALL LENGTH0.7800 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
4531Interchangeable
interchangeable cross-reference
interchangeable
W-L-50Interchangeable
interchangeable cross-reference
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76304Interchangeable
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D-8DInterchangeable
interchangeable cross-reference
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20T8ADRYCHARGEDInterchangeable
interchangeable cross-reference
interchangeable
723901-415Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 9G9818?
9G9818 is a BACKSHELL,ELECTRICAL CONNECTOR.
What parts can replace 9G9818?
There are 28 known substitutes for 9G9818: 4531, W-L-50, 76304 and 25 more. Substitute compatibility should be verified for your specific system.
Is 9G9818 still available?
9G9818 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