PartsTable
Technical Data Sheet
PartsTable / COMPONENT / D1-025386 PIECE NO.4
D1-025386 PIECE NO.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 D1-025386 PIECE NO.4 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-991-0934, 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
D1-025386 PIECE NO.4
NSN: 3110-00-991-0934
FSC: 3110
CAGE: 64713 — POLY RESEARCH CORP (USA)
SPECIFICATIONS
Part NumberD1-025386 PIECE NO.4
NSN3110-00-991-0934
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: D1-025386 PIECE NO.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
•
NONDEFINITIVE SPEC/STD DATA: 120 TYPE
•
MATERIAL: STEEL COMP E52100 BALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
•
SEAL QUANTITY: 2
•
LOAD DIRECTION: RADIAL
•
LUBRICATION MATERIAL: GREASE
•
BEARING SEAL TYPE: LIPS TURNED OUTWARDLY
•
RETAINER FABRICATION METHOD: PRESSED
TECHNICAL CHARACTERISTICS (FLIS)
NONDEFINITIVE SPEC/STD DATA120 TYPE
MATERIALSTEEL COMP E52100 BALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
SEAL QUANTITY2
LOAD DIRECTIONRADIAL
LUBRICATION MATERIALGREASE
BEARING SEAL TYPELIPS TURNED OUTWARDLY
RETAINER FABRICATION METHODPRESSED
CRITICALITY CODE JUSTIFICATIONZZZW
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 35
MILB17931BInterchangeable
interchangeable cross-reference
interchangeable
10264PC10Interchangeable
interchangeable cross-reference
interchangeable
1515668PC4Interchangeable
interchangeable cross-reference
interchangeable
6208-7077V4Interchangeable
interchangeable cross-reference
interchangeable
208TMT58VBInterchangeable
interchangeable cross-reference
interchangeable
6208W1BInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy D1-025386 PIECE NO.4?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is D1-025386 PIECE NO.4?
D1-025386 PIECE NO.4 is a D1-025386 PIECE NO.4.
What parts can replace D1-025386 PIECE NO.4?
There are 35 known substitutes for D1-025386 PIECE NO.4: MILB17931B, 10264PC10, 1515668PC4 and 32 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D1-025386 PIECE NO.4?
D1-025386 PIECE NO.4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-991-0934. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — D1-025386 PIECE NO.4

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026