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Technical Data Sheet
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38633 ✓ Verified by PartsTable
Cellularline · 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 BOOT,DUST AND MOISTURE SEAL is a Cellularline industrial component. Key specifications include material: RUBBER SILICONE BODY, base_height: 0.072 INCHES NOMINAL IN, body_height: 0.327 INCHES NOMINAL IN, thread_class: 2B, thread_length: 0.072 INCHES NOMINAL IN, thread_series: UNEF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0556, 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
38633
NSN: 3110-00-100-0556
FSC: 3110
CAGE: 54123 — COLSON CORP THE (USA)
SPECIFICATIONS
materialRUBBER SILICONE BODY
base_height0.072 INCHES NOMINAL IN
body_height0.327 INCHES NOMINAL IN
thread_class2B
thread_length0.072 INCHES NOMINAL IN
thread_seriesUNEF
overall_height0.312 INCHES NOMINAL IN
sealing_methodCOMPRESSION
mounting_methodINTEGRAL THREADED NUT
style_designatorCLOSED END
width_across_flats0.370 INCHES NOMINAL IN
nominal_thread_size0.350 INCHES IN
NSN3110-00-100-0556
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 38633 · Cellularline ⚠ 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
103690Interchangeable
interchangeable cross-reference
interchangeable
1578-1Interchangeable
interchangeable cross-reference
interchangeable
26822Interchangeable
interchangeable cross-reference
interchangeable
1787815Interchangeable
interchangeable cross-reference
interchangeable
55437Interchangeable
interchangeable cross-reference
interchangeable
984735Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 38633?
38633 is a BOOT,DUST AND MOISTURE SEAL manufactured by Cellularline.
What parts can replace 38633?
There are 27 known substitutes for 38633: 103690, 1578-1, 26822 and 24 more. Substitute compatibility should be verified for your specific system.
Is 38633 still available?
38633 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