PartsTable
Technical Data Sheet
M77NM1220ZFE ✓ Verified by PartsTable
· TAPERED BEARING
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 BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_shape: STRAIGHT, flange_width: 0.0360 INCHES NOMINAL IN, bore_diameter: 0.1875 INCHES MAXIMUM IN, overall_width: 0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN, load_direction: RADIAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-729-6394, 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
M77NM1220ZFE
NSN: 3110-00-729-6394
FSC: 3110
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bore_shapeSTRAIGHT
flange_width0.0360 INCHES NOMINAL IN
bore_diameter0.1875 INCHES MAXIMUM IN
overall_width0.1240 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishGROUND
shield_quantity2
special_featuresINNER RING RADIAL RUNOUT 0.0001 IN.; OUTER RING RADIAL RUNOUT 0.0002 IN. IN
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
internal_clearance0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
lubrication_materialGREASE
NSN3110-00-729-6394
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M77NM1220ZFE · 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
SHIELD QUANTITY: 2
FLANGE OUTSIDE DIAMETER: 0.3590 INCHES NOMINAL IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
SURFACE FINISH: GROUND
BORE SHAPE: STRAIGHT
RETAINER FABRICATION METHOD: PRESSED
OUTER RING OUTSIDE DIAMETER: 0.3123 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SHIELD QUANTITY2
FLANGE OUTSIDE DIAMETER0.3590 INCHES NOMINAL IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-3278 MIL SPEC SINGLE MATERIAL RESPONSE
SURFACE FINISHGROUND
BORE SHAPESTRAIGHT
RETAINER FABRICATION METHODPRESSED
OUTER RING OUTSIDE DIAMETER0.3123 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
SPECIAL FEATURESINNER RING RADIAL RUNOUT 0.0001 IN.; OUTER RING RADIAL RUNOUT 0.0002 IN. IN
INTERNAL CLEARANCE0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN
LOAD DIRECTIONRADIAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
391022Interchangeable
interchangeable cross-reference
interchangeable
MIL-PRF-39012/17Interchangeable
interchangeable cross-reference
interchangeable
MILC39012-17Interchangeable
interchangeable cross-reference
interchangeable
M39012-17-0001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M77NM1220ZFE?
M77NM1220ZFE is a BEARING,BALL,ANNULAR.
What parts can replace M77NM1220ZFE?
There are 4 known substitutes for M77NM1220ZFE: 391022, MIL-PRF-39012/17, MILC39012-17 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for M77NM1220ZFE?
M77NM1220ZFE is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-729-6394. This indicates validated use in U.S. government and defense supply chains.
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