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Technical Data Sheet
PartsTable / COMPONENT / D27557
D27557 ✓ 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 is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_width: 5.062 INCHES NOMINAL IN, head_style: HEXAGON, body_height: 4.312 INCHES NOMINAL IN, body_length: 6.812 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-075-5849, 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
D27557
NSN: 3110-01-075-5849
FSC: 3110
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width5.062 INCHES NOMINAL IN
head_styleHEXAGON
body_height4.312 INCHES NOMINAL IN
body_length6.812 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
fastener_length35.0 MILLIMETERS NOMINAL MM
mounting_methodTHREADED HOLE(S) SINGLE GROUP
frequency_rating50.0 HERTZ NOMINAL OR 60.0 HERTZ NOMINAL SINGLE COMPONENT
special_featuresREPAIR PART FOR STEAM TRAP P/N 23614; C/O 1 EA GASKET,1 EA BELLOWS ASSY,AND 1 EA SEAT; USED ON MOD 6827 WASHER-STERILIZER 6530-01-251-1837
thread_directionRIGHT-HAND
features_providedTINNED WIRE LEADS
NSN3110-01-075-5849
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: D27557 · 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 6
FTC-1857Interchangeable
interchangeable cross-reference
interchangeable
27557Interchangeable
interchangeable cross-reference
interchangeable
44232Interchangeable
interchangeable cross-reference
interchangeable
C16051Interchangeable
interchangeable cross-reference
interchangeable
NAVAL REPAIR PARTInterchangeable
interchangeable cross-reference
interchangeable
36342Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D27557?
D27557 is a BEARING.
What parts can replace D27557?
There are 6 known substitutes for D27557: FTC-1857, 27557, 44232 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D27557?
D27557 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-075-5849. 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