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Technical Data Sheet
PartsTable / COMPONENT / 3537.MOD ITEM 21
3537.MOD ITEM 21 ✓ 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 3537.MOD ITEM 21 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 3110-01-300-3184, 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
3537.MOD ITEM 21
NSN: 3110-01-300-3184
FSC: 3110
CAGE: U3374 — CAT PUMPS (UK) LTD (GBR)
SPECIFICATIONS
Part Number3537.MOD ITEM 21
NSN3110-01-300-3184
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 3537.MOD ITEM 21 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
110 13/64Interchangeable
interchangeable cross-reference
interchangeable
2511 13/64Interchangeable
interchangeable cross-reference
interchangeable
10013Interchangeable
interchangeable cross-reference
interchangeable
29326Interchangeable
interchangeable cross-reference
interchangeable
00737 SH25 TY157Interchangeable
interchangeable cross-reference
interchangeable
29326 EInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3537.MOD ITEM 21?
3537.MOD ITEM 21 is a 3537.MOD ITEM 21.
What parts can replace 3537.MOD ITEM 21?
There are 7 known substitutes for 3537.MOD ITEM 21: 110 13/64, 2511 13/64, 10013 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3537.MOD ITEM 21?
3537.MOD ITEM 21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-300-3184. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026