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3220759 — HOUSING,BEARING UNIT

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

3220759: HOUSING,BEARING UNIT.

The HOUSING,BEARING UNIT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, bore_diameter: 3.5450 INCHES NOMINAL IN, housing_length: 1.9375 INCHES NOMINAL IN, flange_thickness: 0.7540 INCHES NOMINAL IN, housing_diameter: 6.1250 INCHES NOMINAL IN, special_features: SEAL RECESS END OPPOSITE FLANGE; FOUR FLANGE MOUNTING HOLES. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-126-6372, 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
3220759
NSN: 3130-00-126-6372
NIINs: 001266372, 016619346
FSC: 3130 — Bearings, Mounted
CAGE: 55380 — HATCH & KIRK, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
bore_diameter3.5450 INCHES NOMINAL IN
housing_length1.9375 INCHES NOMINAL IN
flange_thickness0.7540 INCHES NOMINAL IN
housing_diameter6.1250 INCHES NOMINAL IN
special_featuresSEAL RECESS END OPPOSITE FLANGE; FOUR FLANGE MOUNTING HOLES
style_designatorFLANGE BLOCK
mounting_hole_typeROUND, UNTHREADED
bolt_circle_diameter5.2500 INCHES NOMINAL IN
mounting_hole_diameter0.5620 INCHES NOMINAL IN
assembly_overall_length3.5450 INCHES NOMINAL IN
NSN3130-00-126-6372
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 3220759 · 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
•
ASSEMBLY OVERALL LENGTH: 3.5450 INCHES NOMINAL IN
•
FLANGE THICKNESS: 0.7540 INCHES NOMINAL IN
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
•
STYLE DESIGNATOR: FLANGE BLOCK
•
MOUNTING HOLE DIAMETER: 0.5620 INCHES NOMINAL IN
•
BOLT CIRCLE DIAMETER: 5.2500 INCHES NOMINAL IN
•
BORE DIAMETER: 3.5450 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
ASSEMBLY OVERALL LENGTH3.5450 INCHES NOMINAL IN
FLANGE THICKNESS0.7540 INCHES NOMINAL IN
MOUNTING HOLE TYPEROUND, UNTHREADED
STYLE DESIGNATORFLANGE BLOCK
MOUNTING HOLE DIAMETER0.5620 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER5.2500 INCHES NOMINAL IN
SPECIAL FEATURESSEAL RECESS END OPPOSITE FLANGE; FOUR FLANGE MOUNTING HOLES
BORE DIAMETER3.5450 INCHES NOMINAL IN
MATERIALCOPPER ALLOY OVERALL
HOUSING LENGTH1.9375 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 3220759?
3220759 is a HOUSING,BEARING UNIT.
What is the NSN for 3220759?
3220759 is cataloged in the U.S. Government catalog under NSN 3130-00-126-6372. 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.