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509643 ✓ 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 HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include body_width: 0.105 INCHES NOMINAL IN, body_height: 0.312 INCHES NOMINAL IN, body_length: 0.978 INCHES NOMINAL IN, terminal_type: PIN, terminal_length: 0.165 INCHES NOMINAL IN, inclosure_method: ENCAPSULATED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-01-203-6486, 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
509643
NSN: 3130-01-203-6486
FSC: 3130
CAGE: 1MVZ1 — SPICER HEAVY AXLE & BRAKE, INC. (USA)
SPECIFICATIONS
body_width0.105 INCHES NOMINAL IN
body_height0.312 INCHES NOMINAL IN
body_length0.978 INCHES NOMINAL IN
terminal_typePIN
terminal_length0.165 INCHES NOMINAL IN
inclosure_methodENCAPSULATED
style_designatorSINGLE INLINE
terminal_quantity6
electrical_resistance82.000 KILOHMS HIGHEST RESISTANCE VALUE
reliability_indicatorNOT ESTABLISHED
schematic_diagram_designatorLADDER NETWORK
resistance_tolerance_in_percent-5.000 TO 5.000 LOCATION NOT OTHERWISE SPECIFIED
NSN3130-01-203-6486
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 509643 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
111756Interchangeable
interchangeable cross-reference
interchangeable
694-10Interchangeable
interchangeable cross-reference
interchangeable
111691Interchangeable
interchangeable cross-reference
interchangeable
AMS-6360Interchangeable
interchangeable cross-reference
interchangeable
SAE-AMS6360Interchangeable
interchangeable cross-reference
interchangeable
111690Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 509643?
509643 is a HOUSING,BEARING UNIT.
What parts can replace 509643?
There are 15 known substitutes for 509643: 111756, 694-10, 111691 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 509643?
509643 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3130-01-203-6486. 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