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C4BM1225-3 — BEARING UNIT,PLAIN

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

C4BM1225-3: BEARING UNIT,PLAIN.

The BEARING UNIT,PLAIN is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 HOUSING, bore_diameter: 0.3750 INCHES NOMINAL IN, alignment_type: SELF-ALIGNING, housing_length: 0.4000 INCHES NOMINAL IN, shaft_end_type: CLOSED, flange_thickness: 0.1000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3130-00-957-8930, 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
C4BM1225-3
NSN: 3130-00-957-8930
FSC: 3130 — Bearings, Mounted
CAGE: 71867 — DE HAVILLAND AIRCRAFT OF CANADA LIMITED (CAN)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 HOUSING
bore_diameter0.3750 INCHES NOMINAL IN
alignment_typeSELF-ALIGNING
housing_length0.4000 INCHES NOMINAL IN
shaft_end_typeCLOSED
flange_thickness0.1000 INCHES NOMINAL IN
housing_diameter2.7000 INCHES MINIMUM AND 2.7500 INCHES MAXIMUM IN
style_designatorFLANGE BLOCK
mounting_hole_typeROUND, UNTHREADED
bolt_circle_diameter2.1000 INCHES NOMINAL IN
load_capability_typeRADIAL
lubrication_materialGREASE
NSN3130-00-957-8930
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: C4BM1225-3 · 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: GREASE
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FLANGE THICKNESS: 0.1000 INCHES NOMINAL IN
•
MOUNTING HOLE TYPE: ROUND, UNTHREADED
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STYLE DESIGNATOR: FLANGE BLOCK
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MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE HOUSING
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MOUNTING HOLE DIAMETER: 0.2500 INCHES NOMINAL IN
•
ALIGNMENT TYPE: SELF-ALIGNING
•
BOLT CIRCLE DIAMETER: 2.1000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
LUBRICATION MATERIALGREASE
FLANGE THICKNESS0.1000 INCHES NOMINAL IN
MOUNTING HOLE TYPEROUND, UNTHREADED
STYLE DESIGNATORFLANGE BLOCK
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/3,T4 FED SPEC SINGLE MATERIAL RESPONSE HOUSING
MOUNTING HOLE DIAMETER0.2500 INCHES NOMINAL IN
ALIGNMENT TYPESELF-ALIGNING
BOLT CIRCLE DIAMETER2.1000 INCHES NOMINAL IN
SHAFT END TYPECLOSED
BORE DIAMETER0.3750 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
Demilitarization required — mutilation
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FREQUENTLY ASKED QUESTIONS
What is C4BM1225-3?
C4BM1225-3 is a BEARING UNIT,PLAIN.
What is the NSN for C4BM1225-3?
C4BM1225-3 is cataloged in the U.S. Government catalog under NSN 3130-00-957-8930. 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.