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13890-1 — CLUTCH,POSITIVE,NONVEHICULAR

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

13890-1: CLUTCH,POSITIVE,NONVEHICULAR.

The CLUTCH,POSITIVE,NONVEHICULAR is a the manufacturer industrial component. Key specifications include special_features: INCLUDES ARM, surface_treatment: NICKEL, body_outside_diameter: 1.490 INCHES MINIMUM AND 1.495 INCHES MAXIMUM IN, end_item_identification: CH53E HELO. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-112-5675, 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
13890-1
NSN: 3110-00-112-5675
NIINs: 001125675, 010553434, 010924116, 013575967
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
special_featuresINCLUDES ARM
surface_treatmentNICKEL
body_outside_diameter1.490 INCHES MINIMUM AND 1.495 INCHES MAXIMUM IN
end_item_identificationCH53E HELO
NSN3110-00-112-5675
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 13890-1 · 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
•
OVERALL OUTSIDE DIAMETER: 5.1250 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
BORE DIAMETER: 3.7500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL OUTSIDE DIAMETER5.1250 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
BORE DIAMETER3.7500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 8
A378841Reference document
Same NSN cross-reference
Reference document — Secondary reference
1SE2290Reference document
Same NSN cross-reference
Reference document — Secondary reference
707707Reference document
Same NSN cross-reference
Reference document — Secondary reference
GR68MI60Reference document
Same NSN cross-reference
Reference document — Secondary reference
M068M160Reference document
Same NSN cross-reference
Reference document — Secondary reference
MI60M068Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 13890-1?
13890-1 is a CLUTCH,POSITIVE,NONVEHICULAR.
What parts can replace 13890-1?
There are 8 known substitutes for 13890-1: A378841, 1SE2290, 707707 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 13890-1?
13890-1 is cataloged in the U.S. Government catalog under NSN 3110-00-112-5675. 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.