PartsTable
Technical Data Sheet
PartsTable / COMPONENT / X4038
X4038 ✓ 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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: STEEL COMP 8640, thread_class: 3A NUT THREAD A, thread_length: 0.406 INCHES MAXIMUM STUD THREAD IN, overall_length: 1.500 INCHES NOMINAL IN, hardness_rating: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM, special_features: ROLLER TYPE: SOLID. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-4289, 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
X4038
NSN: 3110-00-120-4289
FSC: 3110
CAGE: 81067 — CLEVELAND FORMGRADING CO (USA)
SPECIFICATIONS
materialSTEEL COMP 8640
thread_class3A NUT THREAD A
thread_length0.406 INCHES MAXIMUM STUD THREAD IN
overall_length1.500 INCHES NOMINAL IN
hardness_rating32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
special_featuresROLLER TYPE: SOLID
thread_directionRIGHT-HAND STUD THREAD
nominal_thread_size0.250 INCHES STUD THREAD IN
thread_pitch_diameters+0.2193 TO 0.2213 INCHES STUD THREAD IN
overall_outside_diameter1.6250 INCHES NOMINAL IN
thread_quantity_per_inch20 NUT THREAD
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) NUT THREAD
NSN3110-00-120-4289
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: X4038 · 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: 1.6250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESROLLER TYPE: SOLID
OVERALL OUTSIDE DIAMETER1.6250 INCHES NOMINAL IN
OVERALL LENGTH2.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
MIS-10278Interchangeable
interchangeable cross-reference
interchangeable
603003Interchangeable
interchangeable cross-reference
interchangeable
A-A-52440-1B-7Interchangeable
interchangeable cross-reference
interchangeable
4342Interchangeable
interchangeable cross-reference
interchangeable
1-2668Interchangeable
interchangeable cross-reference
interchangeable
388-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy X4038?
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 X4038?
X4038 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace X4038?
There are 28 known substitutes for X4038: MIS-10278, 603003, A-A-52440-1B-7 and 25 more. Substitute compatibility should be verified for your specific system.
What is the NSN for X4038?
X4038 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-120-4289. 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 — X4038

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