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12007857 — ROLLER,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

12007857: ROLLER,BEARING.

The ROLLER,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 OVERALL, overall_length: 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN, style_designator: NEEDLE ROLLER, BALL ENDS, rolling_element_diameter: 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN, material_document_and_classification: SAE-J770 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-048-6158, 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
12007857
NSN: 3110-01-048-6158
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OVERALL
overall_length0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
style_designatorNEEDLE ROLLER, BALL ENDS
rolling_element_diameter0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
material_document_and_classificationSAE-J770 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN3110-01-048-6158
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 12007857 · 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
•
ROLLING ELEMENT DIAMETER: 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: NEEDLE ROLLER, BALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE-J770 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP E52100 OVERALL
TECHNICAL CHARACTERISTICS
ROLLING ELEMENT DIAMETER0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
STYLE DESIGNATORNEEDLE ROLLER, BALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONSAE-J770 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OVERALL LENGTH0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
MATERIALSTEEL COMP E52100 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12007857?
12007857 is a ROLLER,BEARING.
What is the NSN for 12007857?
12007857 is cataloged in the U.S. Government catalog under NSN 3110-01-048-6158. 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.