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MDW4KA1173 — BEARING,BALL,AIRFRAME

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

MDW4KA1173: BEARING,BALL,AIRFRAME.

The BEARING,BALL,AIRFRAME is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE SEAL, bore_diameter: 0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, load_direction: ANGULAR, inner_ring_width: 0.8750 INCHES NOMINAL IN, outer_ring_width: 0.7500 INCHES NOMINAL IN, special_features: ITEM DETERMINED TO NOT BE FLIGHT SAFETY CRITICAL BY ARMY ACTIVITY CT. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-180-6560, 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
MDW4KA1173
NSN: 3110-00-180-6560
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE SEAL
bore_diameter0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
seal_quantity2
load_directionANGULAR
inner_ring_width0.8750 INCHES NOMINAL IN
outer_ring_width0.7500 INCHES NOMINAL IN
special_featuresITEM DETERMINED TO NOT BE FLIGHT SAFETY CRITICAL BY ARMY ACTIVITY CT
style_designatorDOUBLE ROW
bearing_seal_typeCONTACT
surface_treatmentCADMIUM EXPOSED SURFACES AS MOUNTED
lubrication_materialGREASE
end_item_identificationFLEET COMBAT
NSN3110-00-180-6560
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MDW4KA1173 · 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
SUBSTITUTES & CROSS-REFERENCES 5
MDW4K-003MReference document
Same NSN cross-reference
Reference document — Secondary reference
38950-00902Reference document
Same NSN cross-reference
Reference document — Secondary reference
MDW4KA1174Reference document
Same NSN cross-reference
Reference document — Secondary reference
38950-00902-105Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
3110PL1962037Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is MDW4KA1173?
MDW4KA1173 is a BEARING,BALL,AIRFRAME.
What parts can replace MDW4KA1173?
There are 5 known substitutes for MDW4KA1173: MDW4K-003M, 38950-00902, MDW4KA1174 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MDW4KA1173?
MDW4KA1173 is cataloged in the U.S. Government catalog under NSN 3110-00-180-6560. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.