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Technical Data Sheet
PartsTable / COMPONENT / 319S1XT3NT
319S1XT3NT ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 3.7399 INCHES MINIMUM AND 3.7402 INCHES MAXIMUM IN, overall_width: 1.7697 INCHES MINIMUM AND 1.7717 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-987-3744, 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
319S1XT3NT
NSN: 3110-00-987-3744
FSC: 3110
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter3.7399 INCHES MINIMUM AND 3.7402 INCHES MAXIMUM IN
overall_width1.7697 INCHES MINIMUM AND 1.7717 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0009 INCHES MINIMUM RADIAL AND 0.00014 INCHES MAXIMUM RADIAL IN
lubrication_materialGREASE
overall_outside_diameter7.8737 INCHES MINIMUM AND 7.8740 INCHES MAXIMUM IN
internal_fit-up_designationTIGHT
nondefinitive_spec/std_data111 TYPE AND 1 CLASS
NSN3110-00-987-3744
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 319S1XT3NT · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
OVERALL OUTSIDE DIAMETER: 7.8737 INCHES MINIMUM AND 7.8740 INCHES MAXIMUM IN
•
NONDEFINITIVE SPEC/STD DATA: 111 TYPE AND 1 CLASS
•
LUBRICATION MATERIAL: GREASE
•
BORE SHAPE: STRAIGHT
•
SURFACE FINISH: GROUND
•
CRITICALITY CODE JUSTIFICATION: ZZZW
•
INTERNAL CLEARANCE: 0.0009 INCHES MINIMUM RADIAL AND 0.00014 INCHES MAXIMUM RADIAL IN
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER7.8737 INCHES MINIMUM AND 7.8740 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA111 TYPE AND 1 CLASS
LUBRICATION MATERIALGREASE
BORE SHAPESTRAIGHT
SURFACE FINISHGROUND
CRITICALITY CODE JUSTIFICATIONZZZW
INTERNAL CLEARANCE0.0009 INCHES MINIMUM RADIAL AND 0.00014 INCHES MAXIMUM RADIAL IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
INTERNAL FIT-UP DESIGNATIONTIGHT
LOAD DIRECTIONRADIAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 38
H2650-1540PC23Interchangeable
interchangeable cross-reference
interchangeable
2650-1165PC26Interchangeable
interchangeable cross-reference
interchangeable
2650-2275GP2 ITEM 52Interchangeable
interchangeable cross-reference
interchangeable
2650-2230GP1 ITEM 50Interchangeable
interchangeable cross-reference
interchangeable
405850-102AInterchangeable
interchangeable cross-reference
interchangeable
2650-1145PC19NTInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 319S1XT3NT?
319S1XT3NT is a BEARING,BALL,ANNULAR.
What parts can replace 319S1XT3NT?
There are 38 known substitutes for 319S1XT3NT: H2650-1540PC23, 2650-1165PC26, 2650-2275GP2 ITEM 52 and 35 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 319S1XT3NT?
319S1XT3NT is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-987-3744. 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