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8485020 — BEARING UNIT,PLAIN

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

8485020: BEARING UNIT,PLAIN.

The BEARING UNIT,PLAIN is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BEARING SURFACE, base_length: 1.2500 INCHES NOMINAL IN, bore_diameter: 0.7500 INCHES NOMINAL IN, housing_width: 5.0000 INCHES NOMINAL IN, alignment_type: RIGID, base_thickness: 0.6250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-322-8280, 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
8485020
NSN: 3130-00-322-8280
FSC: 3130 — Bearings, Mounted
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY BEARING SURFACE
base_length1.2500 INCHES NOMINAL IN
bore_diameter0.7500 INCHES NOMINAL IN
housing_width5.0000 INCHES NOMINAL IN
alignment_typeRIGID
base_thickness0.6250 INCHES NOMINAL IN
housing_height2.2500 INCHES NOMINAL IN
housing_length2.0000 INCHES NOMINAL IN
shaft_end_typeOPEN
style_designatorPILLOW BLOCK, OPTIONAL SPLIT
mounting_hole_typeSLOTTED
mounting_slot_width0.3750 INCHES NOMINAL IN
NSN3130-00-322-8280
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 8485020 · 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
•
LUBRICATION MATERIAL: OIL
•
LUBRICATION FITTING TYPE: WICK
•
HOUSING HEIGHT: 2.2500 INCHES NOMINAL IN
•
MOUNTING SLOT LENGTH: 0.6250 INCHES NOMINAL IN
•
MOUNTING HOLE TYPE: SLOTTED
•
STYLE DESIGNATOR: PILLOW BLOCK, OPTIONAL SPLIT
•
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH: 3.7500 INCHES NOMINAL IN
•
HOUSING WIDTH: 5.0000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALOIL
LUBRICATION FITTING TYPEWICK
HOUSING HEIGHT2.2500 INCHES NOMINAL IN
MOUNTING SLOT LENGTH0.6250 INCHES NOMINAL IN
MOUNTING HOLE TYPESLOTTED
STYLE DESIGNATORPILLOW BLOCK, OPTIONAL SPLIT
CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG WIDTH3.7500 INCHES NOMINAL IN
HOUSING WIDTH5.0000 INCHES NOMINAL IN
BASE LENGTH1.2500 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
SUBSTITUTES & CROSS-REFERENCES 1
SRP12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8485020?
8485020 is a BEARING UNIT,PLAIN.
What parts can replace 8485020?
There is 1 known substitute for 8485020: SRP12. Substitute compatibility should be verified for your specific system.
What is the NSN for 8485020?
8485020 is cataloged in the U.S. Government catalog under NSN 3130-00-322-8280. 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.