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90721-4 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

90721-4: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY R-405 OVERALL, body_recess_depth: 0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN, peripheral_diameter: 0.585 INCHES MINIMUM AND 0.591 INCHES MAXIMUM IN, body_recess_diameter: 0.353 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN, center_hole_diameter: 0.248 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN, cross-sectional_height: 0.218 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-155-6806, 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
90721-4
NSN: 3110-00-155-6806
NIINs: 001556806, 012228664, 012706197
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
materialNICKEL ALLOY R-405 OVERALL
body_recess_depth0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
peripheral_diameter0.585 INCHES MINIMUM AND 0.591 INCHES MAXIMUM IN
body_recess_diameter0.353 INCHES MINIMUM AND 0.356 INCHES MAXIMUM IN
center_hole_diameter0.248 INCHES MINIMUM AND 0.251 INCHES MAXIMUM IN
cross-sectional_height0.218 INCHES NOMINAL IN
end_item_identificationSTURGEON CLASS SSN (637)
cross-sectional_shape_styleSPECIAL
flanged_body_outside_diameter0.481 INCHES MINIMUM AND 0.483 INCHES MAXIMUM IN
criticality_code_justificationZZZY
material_document_and_classificationQQ-N-281 R-MONEL FED SPEC SINGLE MATERIAL RESPONSE OVERALL
reference_number_differentiating_characteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
NSN3110-00-155-6806
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 90721-4 · 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
KEY FEATURES
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
SHIELD QUANTITY: 1
•
STYLE DESIGNATOR: LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 125.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
SHIELD QUANTITY1
STYLE DESIGNATORLOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH24.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER125.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER70.00 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 8
10785Reference document
Same NSN cross-reference
Reference document — Secondary reference
7214Reference document
Same NSN cross-reference
Reference document — Secondary reference
GAA7633Reference document
Same NSN cross-reference
Reference document — Secondary reference
700607Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
GAA7633BReference document
Same NSN cross-reference
Reference document — Secondary reference
214MFReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90721-4?
90721-4 is a BEARING,BALL,ANNULAR.
What parts can replace 90721-4?
There are 8 known substitutes for 90721-4: 10785, 7214, GAA7633 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90721-4?
90721-4 is cataloged in the U.S. Government catalog under NSN 3110-00-155-6806. This indicates validated use in U.S. government and defense supply chains.
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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.