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PartsTable / COMPONENT / FBJ38TF44-31
FBJ38TF44-31 ✓ 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 RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OUTER LAYER, corner_shape: SQUARE LEFT FLANGE BODY CORNER, flange_width: 0.1870 INCHES NOMINAL IN, overall_length: 1.1570 INCHES NOMINAL IN, surface_finish: 63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY, style_designator: SOLID, EXTERNAL FLANGE ONE END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-781-7288, 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
FBJ38TF44-31
NSN: 3120-00-781-7288
FSC: 3120
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OUTER LAYER
corner_shapeSQUARE LEFT FLANGE BODY CORNER
flange_width0.1870 INCHES NOMINAL IN
overall_length1.1570 INCHES NOMINAL IN
surface_finish63.0 MICROINCHES OUTSIDE DIAMETER SURFACE OF BODY
style_designatorSOLID, EXTERNAL FLANGE ONE END
surface_treatmentANODIZE OUTER LAYER
body_inside_diameter1.1875 INCHES MINIMUM AND 1.1885 INCHES MAXIMUM IN
body_outside_diameter1.3762 INCHES MINIMUM AND 1.3769 INCHES MAXIMUM IN
flange_outside_diameter1.4900 INCHES MINIMUM AND 1.5100 INCHES MAXIMUM IN
NSN3120-00-781-7288
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: FBJ38TF44-31 · 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
•
CORNER SHAPE: SQUARE INSIDE LEFT CORNER
•
MATERIAL: ALUMINUM ALLOY OUTER LAYER
•
BODY OUTSIDE DIAMETER: 1.3762 INCHES MINIMUM AND 1.3769 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
CORNER SHAPESQUARE INSIDE LEFT CORNER
CORNER SHAPESQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
CORNER SHAPESQUARE LEFT FLANGE BODY CORNER
CORNER SHAPESQUARE OUTSIDE RIGHT CORNER
MATERIALALUMINUM ALLOY OUTER LAYER
BODY OUTSIDE DIAMETER1.3762 INCHES MINIMUM AND 1.3769 INCHES MAXIMUM IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE INNER LAYER
CORNER SHAPESQUARE OUTSIDE LEFT CORNER
CORNER SHAPESQUARE INSIDE RIGHT CORNER
BODY INSIDE DIAMETER1.1875 INCHES MINIMUM AND 1.1885 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
179-224Interchangeable
interchangeable cross-reference
interchangeable
6B2718Interchangeable
interchangeable cross-reference
interchangeable
725Interchangeable
interchangeable cross-reference
interchangeable
25-4933PC43Interchangeable
interchangeable cross-reference
interchangeable
902-11Interchangeable
interchangeable cross-reference
interchangeable
MA2003-1000-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is FBJ38TF44-31?
FBJ38TF44-31 is a RELAY,ELECTROMAGNETIC.
What parts can replace FBJ38TF44-31?
There are 10 known substitutes for FBJ38TF44-31: 179-224, 6B2718, 725 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for FBJ38TF44-31?
FBJ38TF44-31 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-781-7288. 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