PartsTable
Technical Data Sheet
PartsTable / COMPONENT / RA3987
RA3987 ✓ 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 COMP 5140 OVERALL, overall_length: 0.3600 INCHES NOMINAL IN, style_designator: NEEDLE ROLLER, SPHERICAL ENDS, rolling_element_diameter: 0.0625 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-117-0643, 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
RA3987
NSN: 3110-00-117-0643
FSC: 3110
CAGE: 51663 — HYDRO-AIRE AEROSPACE CORP. DBA LEAR ROMEC DIV LEAR ROMEC (USA)
SPECIFICATIONS
materialSTEEL COMP 5140 OVERALL
overall_length0.3600 INCHES NOMINAL IN
style_designatorNEEDLE ROLLER, SPHERICAL ENDS
rolling_element_diameter0.0625 INCHES NOMINAL IN
NSN3110-00-117-0643
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: RA3987 · 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
•
MATERIAL: STEEL COMP 5140 OVERALL
•
ROLLING ELEMENT DIAMETER: 0.0625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NEEDLE ROLLER, SPHERICAL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL COMP 5140 OVERALL
ROLLING ELEMENT DIAMETER0.0625 INCHES NOMINAL IN
OVERALL LENGTH0.3600 INCHES NOMINAL IN
STYLE DESIGNATORNEEDLE ROLLER, SPHERICAL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
X776Interchangeable
interchangeable cross-reference
interchangeable
BRA8Interchangeable
interchangeable cross-reference
interchangeable
78-375Interchangeable
interchangeable cross-reference
interchangeable
A78-375Interchangeable
interchangeable cross-reference
interchangeable
38311Interchangeable
interchangeable cross-reference
interchangeable
25-810865-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy RA3987?
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 RA3987?
RA3987 is a BEARING,ROLLER,NEEDLE.
What parts can replace RA3987?
There are 22 known substitutes for RA3987: X776, BRA8, 78-375 and 19 more. Substitute compatibility should be verified for your specific system.
Is RA3987 still available?
RA3987 is currently cancelled.
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 — RA3987

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