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Technical Data Sheet
PartsTable / COMPONENT / H20-4
H20-4 ✓ 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 DEFLECTOR,DIRT AND LIQUID is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 268 OVERALL, head_style: OVAL/TRUSS, body_length: 0.480 INCHES NOMINAL IN, head_height: 0.017 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN, shank_style: TUBULAR, bore_diameter: 1.2500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-112-6565, 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
H20-4
NSN: 3110-00-112-6565
FSC: 3110
CAGE: 02780 — AMERICAN ROLLER BEARING INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 268 OVERALL
head_styleOVAL/TRUSS
body_length0.480 INCHES NOMINAL IN
head_height0.017 INCHES MINIMUM AND 0.019 INCHES MAXIMUM IN
shank_styleTUBULAR
bore_diameter1.2500 INCHES NOMINAL IN
hole_diameter0.039 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
overall_width5.130 INCHES NOMINAL IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
heat_treatmentHALF HARD OVERALL
inclosure_typeFULLY INCLOSED
overall_height10.750 INCHES MAXIMUM IN
NSN3110-00-112-6565
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: H20-4 · 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
•
OVERALL OUTSIDE DIAMETER: 2.0000 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCES FOR JOURNAL BEARINGS
•
BORE DIAMETER: 1.2500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER2.0000 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCES FOR JOURNAL BEARINGS
OVERALL WIDTH2.0000 INCHES NOMINAL IN
BORE DIAMETER1.2500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
5977Interchangeable
interchangeable cross-reference
interchangeable
MIL-E-1/187Interchangeable
interchangeable cross-reference
interchangeable
DMS 80034BInterchangeable
interchangeable cross-reference
interchangeable
H20-4Interchangeable
interchangeable cross-reference
interchangeable
42FW428Interchangeable
interchangeable cross-reference
interchangeable
MMM66407-048Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is H20-4?
H20-4 is a DEFLECTOR,DIRT AND LIQUID.
What parts can replace H20-4?
There are 18 known substitutes for H20-4: 5977, MIL-E-1/187, DMS 80034B and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H20-4?
H20-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-112-6565. 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