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1A7126 — SEAT,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

1A7126: SEAT,BEARING.

The SEAT,BEARING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8740 OVERALL, bore_diameter: 7.1520 INCHES MINIMUM AND 7.1620 INCHES MAXIMUM IN, overall_width: 0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN, outside_diameter: 8.4350 INCHES MINIMUM AND 8.4450 INCHES MAXIMUM IN, end_item_identification: C-17 ACFT ENGINE. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-411-4832, 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
1A7126
NSN: 3110-01-411-4832
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 8740 OVERALL
bore_diameter7.1520 INCHES MINIMUM AND 7.1620 INCHES MAXIMUM IN
overall_width0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN
outside_diameter8.4350 INCHES MINIMUM AND 8.4450 INCHES MAXIMUM IN
end_item_identificationC-17 ACFT ENGINE
NSN3110-01-411-4832
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1A7126 · 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
•
OUTSIDE DIAMETER: 8.4350 INCHES MINIMUM AND 8.4450 INCHES MAXIMUM IN
•
BORE DIAMETER: 7.1520 INCHES MINIMUM AND 7.1620 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 8740 OVERALL
TECHNICAL CHARACTERISTICS
OVERALL WIDTH0.4990 INCHES MINIMUM AND 0.5010 INCHES MAXIMUM IN
OUTSIDE DIAMETER8.4350 INCHES MINIMUM AND 8.4450 INCHES MAXIMUM IN
END ITEM IDENTIFICATIONC-17 ACFT ENGINE
BORE DIAMETER7.1520 INCHES MINIMUM AND 7.1620 INCHES MAXIMUM IN
MATERIALSTEEL COMP 8740 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1A7126?
1A7126 is a SEAT,BEARING.
What is the NSN for 1A7126?
1A7126 is cataloged in the U.S. Government catalog under NSN 3110-01-411-4832. 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.