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MP-63 — BEARING UNIT,BALL

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

MP-63: BEARING UNIT,BALL.

The BEARING UNIT,BALL is a the manufacturer industrial component. Key specifications include base_length: 4.750 INCHES NOMINAL IN, bore_diameter: 3.3125 INCHES NOMINAL IN, housing_width: 17.000 INCHES NOMINAL IN, housing_height: 10.000 INCHES NOMINAL IN, housing_length: 4.625 INCHES NOMINAL IN, style_designator: PILLOW BLOCK, OPTIONAL SPLIT. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-388-8140, 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
MP-63
NSN: 3130-01-388-8140
FSC: 3130 — Bearings, Mounted
CAGE: 71382 — SEAL MASTER BEARINGS SUB OF EMERSON ELECTRIC CO (USA)
SPECIFICATIONS
base_length4.750 INCHES NOMINAL IN
bore_diameter3.3125 INCHES NOMINAL IN
housing_width17.000 INCHES NOMINAL IN
housing_height10.000 INCHES NOMINAL IN
housing_length4.625 INCHES NOMINAL IN
style_designatorPILLOW BLOCK, OPTIONAL SPLIT
height_from_bottom_of_base_to_bore_centerline5.000 INCHES NOMINAL IN
center_to_center_distance_between_mounting_holes_along_width11.750 INCHES MINIMUM AND 14.750 INCHES MAXIMUM IN
NSN3130-01-388-8140
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MP-63 · 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
•
HOUSING HEIGHT: 10.000 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PILLOW BLOCK, OPTIONAL SPLIT
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH: 11.750 INCHES MINIMUM AND 14.750 INCHES MAXIMUM IN
•
HOUSING WIDTH: 17.000 INCHES NOMINAL IN
•
BASE LENGTH: 4.750 INCHES NOMINAL IN
•
BORE DIAMETER: 3.3125 INCHES NOMINAL IN
•
HOUSING LENGTH: 4.625 INCHES NOMINAL IN
•
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE: 5.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HOUSING HEIGHT10.000 INCHES NOMINAL IN
STYLE DESIGNATORPILLOW BLOCK, OPTIONAL SPLIT
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH11.750 INCHES MINIMUM AND 14.750 INCHES MAXIMUM IN
HOUSING WIDTH17.000 INCHES NOMINAL IN
BASE LENGTH4.750 INCHES NOMINAL IN
BORE DIAMETER3.3125 INCHES NOMINAL IN
HOUSING LENGTH4.625 INCHES NOMINAL IN
HEIGHT FROM BOTTOM OF BASE TO BORE CENTERLINE5.000 INCHES NOMINAL IN
OTHER ITEMS IN FSC 3130 — Bearings, Mounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3130-00-001-5118 3130-00-001-5137 3130-00-001-6585 3130-00-003-0422 3130-00-003-0455 3130-00-003-0794 3130-00-003-2802 3130-00-003-9535
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MP-63?
MP-63 is a BEARING UNIT,BALL.
What is the NSN for MP-63?
MP-63 is cataloged in the U.S. Government catalog under NSN 3130-01-388-8140. 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.