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Technical Data Sheet
PartsTable / COMPONENT / N8640-6PC37
N8640-6PC37 ✓ 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 BEARING,WASHER,THRUST is a the manufacturer industrial component. Key specifications include diameter: 2.8170 INCHES MINIMUM AND 2.8220 INCHES MAXIMUM IN, material: COPPER ALLOY OVERALL, corner_shape: SQUARE ALL CORNERS, keyway_radius: 0.1562 INCHES NOMINAL IN, outside_diameter: 4.2340 INCHES MINIMUM AND 4.2660 INCHES MAXIMUM IN, style_designator: ROUND W/KEYWAYS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-661-3282, 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
N8640-6PC37
NSN: 3120-00-661-3282
FSC: 3120
CAGE: 10855 — CARRIER CORP (USA)
SPECIFICATIONS
diameter2.8170 INCHES MINIMUM AND 2.8220 INCHES MAXIMUM IN
materialCOPPER ALLOY OVERALL
corner_shapeSQUARE ALL CORNERS
keyway_radius0.1562 INCHES NOMINAL IN
keyway_quantity1
outside_diameter4.2340 INCHES MINIMUM AND 4.2660 INCHES MAXIMUM IN
style_designatorROUND W/KEYWAYS
overall_thickness0.1860 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN
surface_conditionGROUND
washer_keyway_depth0.1562 INCHES NOMINAL IN
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN3120-00-661-3282
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: N8640-6PC37 · 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
•
DIAMETER: 2.8170 INCHES MINIMUM AND 2.8220 INCHES MAXIMUM IN
•
WASHER KEYWAY DEPTH: 0.1562 INCHES NOMINAL IN
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL THICKNESS: 0.1860 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN
•
SURFACE CONDITION: GROUND
•
MATERIAL: COPPER ALLOY OVERALL
•
CORNER SHAPE: SQUARE ALL CORNERS
•
STYLE DESIGNATOR: ROUND W/KEYWAYS
TECHNICAL CHARACTERISTICS (FLIS)
DIAMETER2.8170 INCHES MINIMUM AND 2.8220 INCHES MAXIMUM IN
WASHER KEYWAY DEPTH0.1562 INCHES NOMINAL IN
CENTER HOLE SHAPE STYLEROUND
OVERALL THICKNESS0.1860 INCHES MINIMUM AND 0.1880 INCHES MAXIMUM IN
SURFACE CONDITIONGROUND
MATERIALCOPPER ALLOY OVERALL
CORNER SHAPESQUARE ALL CORNERS
STYLE DESIGNATORROUND W/KEYWAYS
KEYWAY RADIUS0.1562 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
N8640-6ALT2PC37Interchangeable
interchangeable cross-reference
interchangeable
571-3801-1444715REVAPC114X1062Interchangeable
interchangeable cross-reference
interchangeable
12530Interchangeable
interchangeable cross-reference
interchangeable
5H40-1062Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is N8640-6PC37?
N8640-6PC37 is a BEARING,WASHER,THRUST.
What parts can replace N8640-6PC37?
There are 4 known substitutes for N8640-6PC37: N8640-6ALT2PC37, 571-3801-1444715REVAPC114X1062, 12530 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for N8640-6PC37?
N8640-6PC37 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-661-3282. 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