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Technical Data Sheet
PartsTable / COMPONENT / B40-9L
B40-9L ✓ 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,PLAIN,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: PAPER FILTERING MEDIUM, design_type: NONREUSABLE, body_diameter: 4.500 INCHES NOMINAL IN, flow_direction: OUTSIDE IN, special_features: TOP END CENTER HOLE 0.531 IN. DIA IN, style_designator: CYLINDRICAL W/ CONTAINER (RIGID).

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-073-4308, 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
B40-9L
NSN: 3120-00-073-4308
FSC: 3120
CAGE: 51588 — RBC BEARINGS INCORPORATED DIV WEST TRENTON DIVISION (USA)
SPECIFICATIONS
materialPAPER FILTERING MEDIUM
design_typeNONREUSABLE
body_diameter4.500 INCHES NOMINAL IN
flow_directionOUTSIDE IN
special_featuresTOP END CENTER HOLE 0.531 IN. DIA IN
style_designatorCYLINDRICAL W/ CONTAINER (RIGID)
body_overall_length7.062 INCHES NOMINAL IN
body_inside_diameter2.250 INCHES NOMINAL IN
filtering_media_designPLEATED SINGLE FILTERING MEDIA RESPONSE
media_for_which_designedFUEL/OIL, HYDROCARBON
NSN3120-00-073-4308
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: B40-9L · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
P204HDInterchangeable
interchangeable cross-reference
interchangeable
320680Interchangeable
interchangeable cross-reference
interchangeable
923070Interchangeable
interchangeable cross-reference
interchangeable
2HK158Interchangeable
Same NIIN cross-reference
interchangeable
17489P11Interchangeable
Same NIIN cross-reference
interchangeable
720004AInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B40-9L?
B40-9L is a BEARING,PLAIN,SELF-ALIGNING.
What parts can replace B40-9L?
There are 8 known substitutes for B40-9L: P204HD, 320680, 923070 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B40-9L?
B40-9L is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-073-4308. 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