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2528306 — BEARING UNIT,PLAIN

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

2528306: BEARING UNIT,PLAIN.

The BEARING UNIT,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, base_length: 0.750 INCHES NOMINAL IN, bore_diameter: 0.875 INCHES NOMINAL IN, housing_width: 3.312 INCHES NOMINAL IN, alignment_type: RIGID, base_thickness: 0.375 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-01-594-9702, 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
2528306
NSN: 3130-01-594-9702
FSC: 3130 — Bearings, Mounted
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
base_length0.750 INCHES NOMINAL IN
bore_diameter0.875 INCHES NOMINAL IN
housing_width3.312 INCHES NOMINAL IN
alignment_typeRIGID
base_thickness0.375 INCHES NOMINAL IN
housing_height2.281 INCHES NOMINAL IN
housing_length0.750 INCHES NOMINAL IN
style_designatorPILLOW BLOCK, SOLID
load_capability_typeRADIAL
height_from_bottom_of_base_to_bore_centerline1.688 INCHES NOMINAL IN
center_to_center_distance_between_mounting_holes_along_width2.562 INCHES NOMINAL IN
NSN3130-01-594-9702
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 2528306 · 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: 2.281 INCHES NOMINAL IN
•
STYLE DESIGNATOR: PILLOW BLOCK, SOLID
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH: 2.562 INCHES NOMINAL IN
•
HOUSING WIDTH: 3.312 INCHES NOMINAL IN
•
BASE LENGTH: 0.750 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
•
BASE THICKNESS: 0.375 INCHES NOMINAL IN
•
BORE DIAMETER: 0.875 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
HOUSING HEIGHT2.281 INCHES NOMINAL IN
STYLE DESIGNATORPILLOW BLOCK, SOLID
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH2.562 INCHES NOMINAL IN
HOUSING WIDTH3.312 INCHES NOMINAL IN
BASE LENGTH0.750 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
BASE THICKNESS0.375 INCHES NOMINAL IN
BORE DIAMETER0.875 INCHES NOMINAL IN
MATERIALSTEEL COMP 4140 OVERALL
HOUSING LENGTH0.750 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 2528306?
2528306 is a BEARING UNIT,PLAIN.
What is the NSN for 2528306?
2528306 is cataloged in the U.S. Government catalog under NSN 3130-01-594-9702. 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.