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121KS400SB1127-1 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

121KS400SB1127-1: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY RETAINER, bore_shape: STRAIGHT, bore_diameter: 105.00 MILLIMETERS NOMINAL MM, overall_width: 26.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-945-8299, 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
121KS400SB1127-1
NSN: 3110-00-945-8299
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 38443 — SKF USA INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY RETAINER
bore_shapeSTRAIGHT
bore_diameter105.00 MILLIMETERS NOMINAL MM
overall_width26.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
special_featuresINTERNAL CLEARANCE0.0034
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0021 INCHES MINIMUM RADIAL AND 0.0024 INCHES MAXIMUM RADIAL IN
overall_outside_diameter160.00 MILLIMETERS NOMINAL MM
retainer_fabrication_methodMACHINED
standard_tolerance_designationABEC NO.3
NSN3110-00-945-8299
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 121KS400SB1127-1 · 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
•
INTERNAL CLEARANCE: 0.0021 INCHES MINIMUM RADIAL AND 0.0024 INCHES MAXIMUM RADIAL IN
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OR AMS 6444 ASSN STD SINGLE MATERIAL RESPONSE OR 470978,FSCM 52676 MFR REF SINGLE MATERIAL RESPONSE INNER RING
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
INTERNAL CLEARANCE0.0021 INCHES MINIMUM RADIAL AND 0.0024 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OR AMS 6444 ASSN STD SINGLE MATERIAL RESPONSE OR 470978,FSCM 52676 MFR REF SINGLE MATERIAL RESPONSE INNER RING
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OR AMS 6444 ASSN STD SINGLE MATERIAL RESPONSE OR 470978,FSCM 52676 MFR REF SINGLE MATERIAL RESPONSE OUTER RING
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6444 ASSN STD SINGLE MATERIAL RESPONSE OR 66 FED STD SINGLE MATERIAL RESPONSE OR 470978,FSCM 52676 MFR REF SINGLE MATERIAL RESPONSE BALL
OVERALL WIDTH26.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER160.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
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 7
D2-53262SB1127-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
6021VAASB1127-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
D2-53262Reference document
Same NSN cross-reference
Reference document — Secondary reference
SB1127-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
6021VAAReference document
Same NSN cross-reference
Reference document — Secondary reference
121KS400Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 121KS400SB1127-1?
121KS400SB1127-1 is a BEARING,BALL,ANNULAR.
What parts can replace 121KS400SB1127-1?
There are 7 known substitutes for 121KS400SB1127-1: D2-53262SB1127-1, 6021VAASB1127-1, D2-53262 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 121KS400SB1127-1?
121KS400SB1127-1 is cataloged in the U.S. Government catalog under NSN 3110-00-945-8299. 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.