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MS21151 — BEARING,BALL,ROD END

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

MS21151: BEARING,BALL,ROD END.

The BEARING,BALL,ROD END is a the manufacturer industrial component. Key specifications include shank_style: EXTERNALLY THREADED, thread_class: 3A A, bore_diameter: 0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, alignment_type: SELF-ALIGNING, overall_length: 2.3340 INCHES MINIMUM AND 2.3540 INCHES MAXIMUM IN, shank_diameter: 0.3750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-933-4145, 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
MS21151
NSN: 3110-00-933-4145
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
shank_styleEXTERNALLY THREADED
thread_class3A A
bore_diameter0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
seal_quantity2
alignment_typeSELF-ALIGNING
overall_length2.3340 INCHES MINIMUM AND 2.3540 INCHES MAXIMUM IN
shank_diameter0.3750 INCHES NOMINAL IN
inner_ring_width0.5930 INCHES NOMINAL IN
outer_ring_width0.4280 INCHES MINIMUM AND 0.4480 INCHES MAXIMUM IN
special_featuresSLOT LOCATED ON SHANK PERPENDICULAR TO BORE AXIS,1.125 IN. LONG,0.093 TO 0.098 IN. W IN
style_designatorDOUBLE ROW, STAGGERED, BALL
thread_directionRIGHT-HAND
NSN3110-00-933-4145
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS21151 · 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
•
SHANK DIAMETER: 0.3750 INCHES NOMINAL IN
•
SHANK THREAD LENGTH: 1.1250 INCHES NOMINAL IN
•
BEARING SEAL TYPE: CONTACT
•
LUBRICATION MATERIAL: GREASE
•
OUTER RING WIDTH: 0.4280 INCHES MINIMUM AND 0.4480 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: DOUBLE ROW, STAGGERED, BALL
•
OVERALL OUTSIDE DIAMETER: 0.9280 INCHES MINIMUM AND 0.9480 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.3750 INCHES NOMINAL IN
SHANK THREAD LENGTH1.1250 INCHES NOMINAL IN
BEARING SEAL TYPECONTACT
LUBRICATION MATERIALGREASE
OUTER RING WIDTH0.4280 INCHES MINIMUM AND 0.4480 INCHES MAXIMUM IN
STYLE DESIGNATORDOUBLE ROW, STAGGERED, BALL
OVERALL LENGTH2.3340 INCHES MINIMUM AND 2.3540 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.9280 INCHES MINIMUM AND 0.9480 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 2
MS21151-8CGReference document
Same NSN cross-reference
Reference document — Secondary reference
S6165-61568-000Reference 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 MS21151?
MS21151 is a BEARING,BALL,ROD END.
What parts can replace MS21151?
There are 2 known substitutes for MS21151: MS21151-8CG, S6165-61568-000. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21151?
MS21151 is cataloged in the U.S. Government catalog under NSN 3110-00-933-4145. 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.