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Technical Data Sheet
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74-4002-1 — RING,BEARING,INNER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

74-4002-1: RING,BEARING,INNER.

The RING,BEARING,INNER is a the manufacturer industrial component. Key specifications include specification/standard_data: 02024-74-4002-1 MANUFACTURERS STANDARD. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-777-5851, 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
74-4002-1
NSN: 3110-00-777-5851
NIINs: 007775851, 013493472
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 96774 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL (USA)
SPECIFICATIONS
specification/standard_data02024-74-4002-1 MANUFACTURERS STANDARD
NSN3110-00-777-5851
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 74-4002-1 · 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
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: INNER RING, BALL
•
OVERALL OUTSIDE DIAMETER: 0.2710 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
•
BORE SHAPE: STRAIGHT
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BORE DIAMETER: 0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORINNER RING, BALL
OVERALL WIDTH0.1552 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER0.2710 INCHES MINIMUM AND 0.2810 INCHES MAXIMUM IN
BORE SHAPESTRAIGHT
BORE DIAMETER0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
PR3B-IRReference document
Same NSN cross-reference
Reference document — Secondary reference
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 74-4002-1?
74-4002-1 is a RING,BEARING,INNER.
What parts can replace 74-4002-1?
There is 1 known substitute for 74-4002-1: PR3B-IR. Substitute compatibility should be verified for your specific system.
What is the NSN for 74-4002-1?
74-4002-1 is cataloged in the U.S. Government catalog under NSN 3110-00-777-5851. 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.