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63721 — RETAINER AND ROLLERS,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

63721: RETAINER AND ROLLERS,BEARING.

The RETAINER AND ROLLERS,BEARING is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, material: ALUMINUM BASE, overall_height: 40.000 INCHES MINIMUM AND 40.000 INCHES MINIMUM AND 84.000 INCHES MAXIMUM84.000 INCHES MAXIMUM IN, voltage_rating_in_volts: 110.000 AC NOMINAL110.000 AC NOMINAL. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-606-6435, 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
63721
NSN: 3110-00-606-6435
NIINs: 006066435, 015984027
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 97370 — SPX FLOW US, LLC DBA SPX VALVES & CONTROLS (USA)
SPECIFICATIONS
shapeRECTANGULAR
materialALUMINUM BASE
overall_height40.000 INCHES MINIMUM AND 40.000 INCHES MINIMUM AND 84.000 INCHES MAXIMUM84.000 INCHES MAXIMUM IN
voltage_rating_in_volts110.000 AC NOMINAL110.000 AC NOMINAL
NSN3110-00-606-6435
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 63721 · 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 10
NTA1625Reference document
Same NSN cross-reference
Reference document — Secondary reference
A-614-8812-4Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
802CX384Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
U21-453Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
FA-17368Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
065989Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 63721?
63721 is a RETAINER AND ROLLERS,BEARING.
What parts can replace 63721?
There are 10 known substitutes for 63721: NTA1625, A-614-8812-4, 802CX384 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 63721?
63721 is cataloged in the U.S. Government catalog under NSN 3110-00-606-6435. 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.