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Technical Data Sheet
PartsTable / COMPONENT / 139C7757-5
139C7757-5 ✓ 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,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL INNER RACE, bore_diameter: 0.8125 INCHES NOMINAL IN, overall_width: 0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, style_designator: NON-SEPARABLE, WITH ROLLER RETAINER, OPEN END, DRAWN SHELL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-273-9085, 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
139C7757-5
NSN: 3110-01-273-9085
FSC: 3110
CAGE: 05606 — GENERAL DYNAMICS-OTS, INC. DIV ORDNANCE AND TACTICAL SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL INNER RACE
bore_diameter0.8125 INCHES NOMINAL IN
overall_width0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
alignment_typeRIGID
surface_finishGROUND
style_designatorNON-SEPARABLE, WITH ROLLER RETAINER, OPEN END, DRAWN SHELL
lubrication_materialGREASE
overall_outside_diameter1.1250 INCHES NOMINAL IN
lubrication_material_document_and_classificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-01-273-9085
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 139C7757-5 · 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
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
•
OVERALL OUTSIDE DIAMETER: 1.1250 INCHES NOMINAL IN
•
LUBRICATION MATERIAL: GREASE
•
SURFACE FINISH: GROUND
•
ALIGNMENT TYPE: RIGID
•
BORE DIAMETER: 0.8125 INCHES NOMINAL IN
•
MATERIAL: STEEL CUP
TECHNICAL CHARACTERISTICS (FLIS)
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL OUTSIDE DIAMETER1.1250 INCHES NOMINAL IN
LUBRICATION MATERIALGREASE
SURFACE FINISHGROUND
ALIGNMENT TYPERIGID
BORE DIAMETER0.8125 INCHES NOMINAL IN
OVERALL WIDTH0.7400 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
MATERIALSTEEL CUP
MATERIALSTEEL INNER RACE
MATERIALSTEEL ROLLER
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
JH1312Interchangeable
interchangeable cross-reference
interchangeable
5669Interchangeable
interchangeable cross-reference
interchangeable
JH1312-AIDInterchangeable
interchangeable cross-reference
interchangeable
738534-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 139C7757-5?
139C7757-5 is a BEARING,ROLLER,NEEDLE.
What parts can replace 139C7757-5?
There are 4 known substitutes for 139C7757-5: JH1312, 5669, JH1312-AID and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 139C7757-5?
139C7757-5 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-273-9085. 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