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H643-6502-41 — BEARING,WASHER,THRUST

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

H643-6502-41: BEARING,WASHER,THRUST.

The BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include overall_width: 41.810 INCHES NOMINAL IN, overall_length: 194.270 INCHES NOMINAL IN, overall_diameter: 28.000 INCHES NOMINAL IN, special_features: ATTACHES FWD OF SNORKEL INDUCTION MAST., end_item_identification: NSSN CLASS SUBMARINE, part_name_assigned_by_controlling_agency: SNORKEL FAIRING ASSY. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-497-6347, 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
H643-6502-41
NSN: 3120-01-497-6347
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 96169 — ELECTRIC BOAT CORPORATION DIV GENERAL DYNAMICS ELECTRIC BOAT (USA)
SPECIFICATIONS
overall_width41.810 INCHES NOMINAL IN
overall_length194.270 INCHES NOMINAL IN
overall_diameter28.000 INCHES NOMINAL IN
special_featuresATTACHES FWD OF SNORKEL INDUCTION MAST.
end_item_identificationNSSN CLASS SUBMARINE
part_name_assigned_by_controlling_agencySNORKEL FAIRING ASSY
NSN3120-01-497-6347
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: H643-6502-41 · 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
SUBSTITUTES & CROSS-REFERENCES 1
342-7067317Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H643-6502-41?
H643-6502-41 is a BEARING,WASHER,THRUST.
What parts can replace H643-6502-41?
There is 1 known substitute for H643-6502-41: 342-7067317. Substitute compatibility should be verified for your specific system.
What is the NSN for H643-6502-41?
H643-6502-41 is cataloged in the U.S. Government catalog under NSN 3120-01-497-6347. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.