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BB9355 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include material: IRON OVERALL, corner_shape: SQUARE INSIDE RIGHT CORNER, overall_length: 8.5625 INCHES NOMINAL IN, special_features: EXTERNAL SURFACE GROOVE, style_designator: SOLID, EXTERNAL FLANGES BOTH ENDS, left_flange_width: 2.0000 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-709-7421, 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
BB9355
NSN: 3120-00-709-7421
FSC: 3120
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialIRON OVERALL
corner_shapeSQUARE INSIDE RIGHT CORNER
overall_length8.5625 INCHES NOMINAL IN
special_featuresEXTERNAL SURFACE GROOVE
style_designatorSOLID, EXTERNAL FLANGES BOTH ENDS
left_flange_width2.0000 INCHES NOMINAL IN
right_flange_width0.5000 INCHES NOMINAL IN
body_inside_diameter2.7560 INCHES MINIMUM AND 2.7590 INCHES MAXIMUM IN
body_outside_diameter3.3251 INCHES MINIMUM AND 3.3281 INCHES MAXIMUM IN
left_flange_outside_diameter3.3450 INCHES MINIMUM AND 3.3485 INCHES MAXIMUM IN
lubricant_accommodation_styleGROOVED SPIRAL CIRCULAR
NSN3120-00-709-7421
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: BB9355 · 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
•
MATERIAL: IRON OVERALL
•
CORNER SHAPE: SQUARE INSIDE RIGHT CORNER
•
STYLE DESIGNATOR: SOLID, EXTERNAL FLANGES BOTH ENDS
•
LEFT FLANGE WIDTH: 2.0000 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 3.3251 INCHES MINIMUM AND 3.3281 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH8.5625 INCHES NOMINAL IN
SPECIAL FEATURESEXTERNAL SURFACE GROOVE
MATERIALIRON OVERALL
CORNER SHAPESQUARE INSIDE RIGHT CORNER
STYLE DESIGNATORSOLID, EXTERNAL FLANGES BOTH ENDS
LEFT FLANGE WIDTH2.0000 INCHES NOMINAL IN
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
BODY OUTSIDE DIAMETER3.3251 INCHES MINIMUM AND 3.3281 INCHES MAXIMUM IN
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
RIGHT FLANGE WIDTH0.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
2N4416Interchangeable
interchangeable cross-reference
interchangeable
353739Interchangeable
interchangeable cross-reference
interchangeable
31117Interchangeable
interchangeable cross-reference
interchangeable
382 10-24 UNCInterchangeable
interchangeable cross-reference
interchangeable
3528Interchangeable
interchangeable cross-reference
interchangeable
125242Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is BB9355?
BB9355 is a BEARING,SLEEVE.
What parts can replace BB9355?
There are 13 known substitutes for BB9355: 2N4416, 353739, 31117 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for BB9355?
BB9355 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-709-7421. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026