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Technical Data Sheet
PartsTable / MRO / M1129
M1129 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The NETWORK,CIRCUIT PROTECTION is a the manufacturer industrial component. Key specifications include material: STEEL OUTER RING, bore_shape: STRAIGHT, bore_diameter: 60.00 MILLIMETERS NOMINAL MM, overall_width: 22.0 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6774, 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
MRO→ MRO_GENERAL→ M1129
NSN: 3110-00-155-6774
FSC: 3110
CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_shapeSTRAIGHT
bore_diameter60.00 MILLIMETERS NOMINAL MM
overall_width22.0 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
shield_quantity2
style_designatorLOADING GROOVE, NON-SEPARABLE
lubrication_materialGREASE
overall_outside_diameter110.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationSTANDARD
standard_tolerance_designationABEC NO.1
NSN3110-00-155-6774
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M1129 · 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
•
LOAD DIRECTION: RADIAL
•
SHIELD QUANTITY: 2
•
LUBRICATION MATERIAL: GREASE
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: DOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
•
SURFACE FINISH: GROUND
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
TECHNICAL CHARACTERISTICS (FLIS)
LOAD DIRECTIONRADIAL
SHIELD QUANTITY2
LUBRICATION MATERIALGREASE
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
SURFACE FINISHGROUND
INTERNAL FIT-UP DESIGNATIONSTANDARD
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
MATERIALSTEEL SHIELD
MATERIALSTEEL BALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
328-18Interchangeable
interchangeable cross-reference
interchangeable
SHELL SPIRAX S4 TXMInterchangeable
interchangeable cross-reference
interchangeable
M1141Interchangeable
interchangeable cross-reference
interchangeable
PERMATRAN 841-744 M1Interchangeable
interchangeable cross-reference
interchangeable
32818AInterchangeable
interchangeable cross-reference
interchangeable
AS32818AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M1129?
M1129 is a NETWORK,CIRCUIT PROTECTION. It is classified as a MRO (MRO_GENERAL).
What parts can replace M1129?
There are 23 known substitutes for M1129: 328-18, SHELL SPIRAX S4 TXM, M1141 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M1129?
M1129 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6774. 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