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1907RD3B — RESISTOR,FIXED,COMPOSITION

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

1907RD3B: RESISTOR,FIXED,COMPOSITION.

The RESISTOR,FIXED,COMPOSITION is a the manufacturer industrial component. Key specifications include material: STEEL INNER RING, bore_diameter: 35.0 MILLIMETERS NOMINAL MM, overall_width: 20.0 MILLIMETERS NOMINAL MM, load_direction: ANGULAR, surface_finish: GROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-618-9271, 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
1907RD3B
NSN: 3110-00-618-9271
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialSTEEL INNER RING
bore_diameter35.0 MILLIMETERS NOMINAL MM
overall_width20.0 MILLIMETERS NOMINAL MM
load_directionANGULAR
surface_finishGROUND
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
overall_outside_diameter55.0 MILLIMETERS NOMINAL MM
bearing_preload_designationLIGHT
retainer_fabrication_methodMACHINED
standard_tolerance_designationABEC NO.3
NSN3110-00-618-9271
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1907RD3B · 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
•
RETAINER FABRICATION METHOD: MACHINED
•
SURFACE FINISH: GROUND
•
BEARING PRELOAD DESIGNATION: LIGHT
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
•
OVERALL OUTSIDE DIAMETER: 55.0 MILLIMETERS NOMINAL MM
•
LOAD DIRECTION: ANGULAR
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.3
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
SURFACE FINISHGROUND
BEARING PRELOAD DESIGNATIONLIGHT
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, BACK TO BACK MOUNTING
OVERALL WIDTH20.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER55.0 MILLIMETERS NOMINAL MM
LOAD DIRECTIONANGULAR
STANDARD TOLERANCE DESIGNATIONABEC NO.3
BORE DIAMETER35.0 MILLIMETERS NOMINAL MM
MATERIALSTEEL OUTER RING
SUBSTITUTES & CROSS-REFERENCES 2
M9307K-MRB-DB-E6Reference document
Same NSN cross-reference
Reference document — Secondary reference
M9307KMBRDBE6665Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1907RD3B?
1907RD3B is a RESISTOR,FIXED,COMPOSITION.
What parts can replace 1907RD3B?
There are 2 known substitutes for 1907RD3B: M9307K-MRB-DB-E6, M9307KMBRDBE6665. Substitute compatibility should be verified for your specific system.
What is the NSN for 1907RD3B?
1907RD3B is cataloged in the U.S. Government catalog under NSN 3110-00-618-9271. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.