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12321038 — BEARING,BALL,ANNULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

12321038: BEARING,BALL,ANNULAR.

The BEARING,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 440C OVERALL, bore_shape: STRAIGHT, bore_diameter: 1.6247 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN, overall_width: 0.1510 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN, load_direction: RADIAL, surface_finish: UNGROUND. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-190-8532, 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
12321038
NSN: 3110-01-190-8532
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 40920 — MPB CORP DIV TIMKEN SUPER PRECISION (USA)
SPECIFICATIONS
materialSTEEL COMP 440C OVERALL
bore_shapeSTRAIGHT
bore_diameter1.6247 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN
overall_width0.1510 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN
load_directionRADIAL
surface_finishUNGROUND
special_featuresLAMINATED COTTON PHENOLIC CROWN SNAP IN SEPARATOR
overall_outside_diameter1.8746 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
NSN3110-01-190-8532
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 12321038 · 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
•
SURFACE FINISH: UNGROUND
•
OVERALL OUTSIDE DIAMETER: 1.8746 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
•
BORE DIAMETER: 1.6247 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 440C OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISHUNGROUND
OVERALL WIDTH0.1510 INCHES MINIMUM AND 0.1560 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER1.8746 INCHES MINIMUM AND 1.8750 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
SPECIAL FEATURESLAMINATED COTTON PHENOLIC CROWN SNAP IN SEPARATOR
BORE DIAMETER1.6247 INCHES MINIMUM AND 1.6250 INCHES MAXIMUM IN
MATERIALSTEEL COMP 440C OVERALL
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
S2630MC5Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12321038?
12321038 is a BEARING,BALL,ANNULAR.
What parts can replace 12321038?
There is 1 known substitute for 12321038: S2630MC5. Substitute compatibility should be verified for your specific system.
What is the NSN for 12321038?
12321038 is cataloged in the U.S. Government catalog under NSN 3110-01-190-8532. 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.