PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 1907R4
1907R4 ✓ 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: COPPER ALLOY 864 RETAINER, bore_shape: STRAIGHT, bore_diameter: 1.3780 INCHES NOMINAL IN, contact_angle: 12.0 DEGREES NOMINAL, overall_width: 0.3937 INCHES NOMINAL IN, load_direction: ANGULAR. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-405-4639, 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
1907R4
NSN: 3110-00-405-4639
FSC: 3110
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY 864 RETAINER
bore_shapeSTRAIGHT
bore_diameter1.3780 INCHES NOMINAL IN
contact_angle12.0 DEGREES NOMINAL
overall_width0.3937 INCHES NOMINAL IN
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RING, NON-SEPARABLE
internal_clearance0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
overall_outside_diameter2.1654 INCHES NOMINAL IN
retainer_fabrication_methodMACHINED
standard_tolerance_designationABEC NO.3
NSN3110-00-405-4639
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1907R4 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED-STD-66 FED STD SINGLE MATERIAL RESPONSE INNER RING
•
TEST DATA DOCUMENT: 81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). AND 81349-MIL-I-6866 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
•
MATERIAL: STEEL COMP E51100 BALL
•
STYLE DESIGNATOR: COUNTERBORED OUTER RING, NON-SEPARABLE
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL WIDTH0.3937 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD-66 FED STD SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD-66 FED STD SINGLE MATERIAL RESPONSE BALL
TEST DATA DOCUMENT81349-MIL-I-6868 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.). AND 81349-MIL-I-6866 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
MATERIALSTEEL COMP E51100 BALL
MATERIALSTEEL COMP E52100 INNER RING
MATERIAL DOCUMENT AND CLASSIFICATIONFED-STD-66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
MATERIALSTEEL COMP E52100 OUTER RING
MATERIALCOPPER ALLOY 864 RETAINER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
33736Interchangeable
interchangeable cross-reference
interchangeable
50596Interchangeable
interchangeable cross-reference
interchangeable
120X 9/16 (12 IN. LG)Interchangeable
interchangeable cross-reference
interchangeable
SMB331460Interchangeable
interchangeable cross-reference
interchangeable
59636Interchangeable
interchangeable cross-reference
interchangeable
59636AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1907R4?
1907R4 is a BEARING,BALL,ANNULAR.
What parts can replace 1907R4?
There are 8 known substitutes for 1907R4: 33736, 50596, 120X 9/16 (12 IN. LG) and 5 more. Substitute compatibility should be verified for your specific system.
Is 1907R4 still available?
1907R4 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026