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Technical Data Sheet
PartsTable / COMPONENT / 25Z383
25Z383 ✓ 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 CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, overall_width: 1.0000 INCHES NOMINAL IN, outside_diameter: 4.8750 INCHES NOMINAL IN, special_features: STEEP ANGLE, style_designator: NORMAL ANGLE, backface_corner_radius: 0.1250 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0615, 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
25Z383
NSN: 3110-00-100-0615
FSC: 3110
CAGE: 27315 — MORRIS MATERIAL HANDLING, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width1.0000 INCHES NOMINAL IN
outside_diameter4.8750 INCHES NOMINAL IN
special_featuresSTEEP ANGLE
style_designatorNORMAL ANGLE
backface_corner_radius0.1250 INCHES NOMINAL IN
end_item_identificationHIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-100-0615
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 25Z383 · 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
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
OUTSIDE DIAMETER: 4.8750 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
MATERIAL: STEEL OVERALL
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONHIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
SPECIAL FEATURESSTEEP ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
OVERALL WIDTH1.0000 INCHES NOMINAL IN
OUTSIDE DIAMETER4.8750 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
4010-1Interchangeable
interchangeable cross-reference
interchangeable
6203-2RS1(UE)Interchangeable
interchangeable cross-reference
interchangeable
Z99503XR1VInterchangeable
interchangeable cross-reference
interchangeable
Z99503 XR1RVInterchangeable
interchangeable cross-reference
interchangeable
SPL021341-1SPITEMInterchangeable
interchangeable cross-reference
interchangeable
300-62Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 25Z383?
25Z383 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 25Z383?
There are 29 known substitutes for 25Z383: 4010-1, 6203-2RS1(UE), Z99503XR1V and 26 more. Substitute compatibility should be verified for your specific system.
Is 25Z383 still available?
25Z383 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026