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Technical Data Sheet
PartsTable / COMPONENT / 6443SR
6443SR ✓ 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 LEAD SET,IGNITION,ENGINE is a the manufacturer industrial component. Key specifications include material: STEEL OR COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, overall_length: 1.4800 INCHES NOMINAL IN, style_designator: SOLID, PLAIN, NO OUTSIDE FLANGES, body_inside_diameter: 0.8520 INCHES NOMINAL IN, body_outside_diameter: 1.0032 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-895-7801, 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
6443SR
NSN: 3120-00-895-7801
FSC: 3120
CAGE: 49576 — QUINCY COMPRESSOR DIVISION OF COLTEC INDUSTRIES INC DBA QUINCY COMPRESSOR DIV QUINCY COMPRESSOR (USA)
SPECIFICATIONS
materialSTEEL OR COPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
overall_length1.4800 INCHES NOMINAL IN
style_designatorSOLID, PLAIN, NO OUTSIDE FLANGES
body_inside_diameter0.8520 INCHES NOMINAL IN
body_outside_diameter1.0032 INCHES NOMINAL IN
end_item_identificationLOGISTICS SUPPORT VESSEL
NSN3120-00-895-7801
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 6443SR · 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: 1.0032 INCHES NOMINAL IN
•
BODY INSIDE DIAMETER: 0.8520 INCHES NOMINAL IN
•
CORNER SHAPE: SQUARE ALL CORNERS
•
STYLE DESIGNATOR: SOLID, PLAIN, NO OUTSIDE FLANGES
•
MATERIAL: STEEL OR COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
BODY OUTSIDE DIAMETER1.0032 INCHES NOMINAL IN
OVERALL LENGTH1.4800 INCHES NOMINAL IN
BODY INSIDE DIAMETER0.8520 INCHES NOMINAL IN
CORNER SHAPESQUARE ALL CORNERS
END ITEM IDENTIFICATIONLOGISTICS SUPPORT VESSEL
STYLE DESIGNATORSOLID, PLAIN, NO OUTSIDE FLANGES
MATERIALSTEEL OR COPPER ALLOY OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
10026920Interchangeable
interchangeable cross-reference
interchangeable
64-4-3Interchangeable
interchangeable cross-reference
interchangeable
6459Interchangeable
interchangeable cross-reference
interchangeable
F93K192Interchangeable
interchangeable cross-reference
interchangeable
93-11-19-22 DEInterchangeable
interchangeable cross-reference
interchangeable
46-305BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 6443SR?
6443SR is a LEAD SET,IGNITION,ENGINE.
What parts can replace 6443SR?
There are 7 known substitutes for 6443SR: 10026920, 64-4-3, 6459 and 4 more. Substitute compatibility should be verified for your specific system.
Is 6443SR still available?
6443SR 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