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Technical Data Sheet
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MB3012DU — BUSHING,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

MB3012DU: BUSHING,SLEEVE.

The BUSHING,SLEEVE is a the manufacturer industrial component. Key specifications include material: STEEL AND BRONZE OUTER LAYER, overall_length: 12.0 MILLIMETERS NOMINAL MM, body_inside_diameter: 30.0 MILLIMETERS NOMINAL MM, part_name_assigned_by_controlling_agency: DU BUSHING. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-649-3322, 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
MB3012DU
NSN: 3120-01-649-3322
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 0ER01 — FBJ DISTRIBUTORS (USA)
SPECIFICATIONS
materialSTEEL AND BRONZE OUTER LAYER
overall_length12.0 MILLIMETERS NOMINAL MM
body_inside_diameter30.0 MILLIMETERS NOMINAL MM
part_name_assigned_by_controlling_agencyDU BUSHING
NSN3120-01-649-3322
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MB3012DU · 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
•
BODY INSIDE DIAMETER: 30.0 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL AND BRONZE OUTER LAYER
TECHNICAL CHARACTERISTICS
OVERALL LENGTH12.0 MILLIMETERS NOMINAL MM
BODY INSIDE DIAMETER30.0 MILLIMETERS NOMINAL MM
SPECIAL FEATURESTHE DRY BUSHING (OR DU BUSHING) IS THE ULTIMATE IN OILLESS BEARING DESIGN, USING LEAD AND TETRAFLUOROETHYLENE (PTFE) HAVING EXCELLENT WEAR RESISTANCE WHICH OPTIMIZES METAL PROPERTIES SUCH AS STRENGTH AND DIMENSIONAL STABILITY.
PART NAME ASSIGNED BY CONTROLLING AGENCYDU BUSHING
MATERIALSTEEL AND BRONZE OUTER LAYER
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
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 MB3012DU?
MB3012DU is a BUSHING,SLEEVE.
What is the NSN for MB3012DU?
MB3012DU is cataloged in the U.S. Government catalog under NSN 3120-01-649-3322. 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.