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10921639 — BEARING,ROLLER,NEEDLE

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

10921639: BEARING,ROLLER,NEEDLE.

The BEARING,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 3.5000 INCHES NOMINAL IN, overall_width: 1.5100 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: GROUND, special_features: UNMOUNTED RADIAL CLEARANCE 0.0020 TO 0.0038 IN. IN.

This part is cataloged in the U.S. Government catalog under NSN 3110-00-446-3211, 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
10921639
NSN: 3110-00-446-3211
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 51588 — RBC BEARINGS INCORPORATED DIV WEST TRENTON DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter3.5000 INCHES NOMINAL IN
overall_width1.5100 INCHES NOMINAL IN
alignment_typeRIGID
surface_finishGROUND
special_featuresUNMOUNTED RADIAL CLEARANCE 0.0020 TO 0.0038 IN. IN
style_designatorSEPARABLE INNER RACE, WITH ROLLER RETAINER, HARDENED AND GROUND
overall_outside_diameter4.3750 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-446-3211
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 10921639 · 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: PRESSED
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: SEPARABLE INNER RACE, WITH ROLLER RETAINER, HARDENED AND GROUND
•
OVERALL OUTSIDE DIAMETER: 4.3750 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
SURFACE FINISHGROUND
STYLE DESIGNATORSEPARABLE INNER RACE, WITH ROLLER RETAINER, HARDENED AND GROUND
OVERALL WIDTH1.5100 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER4.3750 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
SPECIAL FEATURESUNMOUNTED RADIAL CLEARANCE 0.0020 TO 0.0038 IN. IN
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
BORE DIAMETER3.5000 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 5
1SE5337Reference document
Same NSN cross-reference
Reference document — Secondary reference
C6548AReference document
Same NSN cross-reference
Reference document — Secondary reference
3110004463211Reference document
Same NSN cross-reference
Reference document — Secondary reference
SE511-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
FC68094Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10921639?
10921639 is a BEARING,ROLLER,NEEDLE.
What parts can replace 10921639?
There are 5 known substitutes for 10921639: 1SE5337, C6548A, 3110004463211 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10921639?
10921639 is cataloged in the U.S. Government catalog under NSN 3110-00-446-3211. 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.