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Technical Data Sheet
PartsTable / COMPONENT / MK46-191
MK46-191 ✓ Verified by PartsTable
— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,PLAIN,ROD END is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING RACE INSERT, shank_style: EXTERNALLY THREADED, thread_class: 3A A, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_length: 2.2975 INCHES MINIMUM AND 2.3500 INCHES MAXIMUM IN, hardness_rating: 38.0 ROCKWELL C NOMINAL ROD END BODY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-187-9041, 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
MK46-191
NSN: 3120-00-187-9041
FSC: 3120
CAGE: 73134 — ROLLER BEARING COMPANY OF AMERICA, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING RACE INSERT
shank_styleEXTERNALLY THREADED
thread_class3A A
bore_diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_length2.2975 INCHES MINIMUM AND 2.3500 INCHES MAXIMUM IN
hardness_rating38.0 ROCKWELL C NOMINAL ROD END BODY
thread_diameter0.375 INCHES NOMINAL IN
special_featuresSTD NAS KEYWAY IN SHANK,0.0005 IN. MIN 0.0015 IN. MAX DIAMETRAL CLEARANCE IN
style_designatorBALL TYPE
thread_directionRIGHT-HAND
surface_treatmentCHROMIUM INNER MEMBER
inner_member_width0.5880 INCHES MINIMUM AND 0.5930 INCHES MAXIMUM IN
NSN3120-00-187-9041
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MK46-191 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SHANK THREAD LENGTH: 1.2500 INCHES MINIMUM AND 1.3400 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 24
•
THREAD SERIES DESIGNATOR: UNF
•
STYLE DESIGNATOR: BALL TYPE
•
MATERIAL: STEEL COMP 440C OR STEEL COMP 440F INNER MEMBER
•
SURFACE TREATMENT: CHROMIUM INNER MEMBER
TECHNICAL CHARACTERISTICS (FLIS)
SHANK THREAD LENGTH1.2500 INCHES MINIMUM AND 1.3400 INCHES MAXIMUM IN
OVERALL LENGTH2.2975 INCHES MINIMUM AND 2.3500 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH24
THREAD SERIES DESIGNATORUNF
STYLE DESIGNATORBALL TYPE
MATERIALSTEEL COMP 440C OR STEEL COMP 440F INNER MEMBER
SURFACE TREATMENTCHROMIUM INNER MEMBER
HARDNESS RATING38.0 ROCKWELL C NOMINAL ROD END BODY
MATERIALSTEEL CORROSION RESISTING INTERNAL ROD END BODY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
5-1-498Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-2692Interchangeable
interchangeable cross-reference
interchangeable
MIL-F-2692 TY2Interchangeable
interchangeable cross-reference
interchangeable
2026Interchangeable
interchangeable cross-reference
interchangeable
4655CInterchangeable
interchangeable cross-reference
interchangeable
51452L1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MK46-191?
MK46-191 is a BEARING,PLAIN,ROD END.
What parts can replace MK46-191?
There are 16 known substitutes for MK46-191: 5-1-498, MIL-F-2692, MIL-F-2692 TY2 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MK46-191?
MK46-191 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-187-9041. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026