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3968074 — INSERT,ENGINE VALVE SEAT

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

3968074: INSERT,ENGINE VALVE SEAT.

The INSERT,ENGINE VALVE SEAT is a the manufacturer industrial component. Key specifications include end_item_identification: ISC/ISL CM850 BASE ENGINE, part_name_assigned_by_controlling_agency: VALVE INSERT. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-161-4028, 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
3968074
NSN: 3110-01-161-4028
NIINs: 011614028, 017107111
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 77896 — REXNORD INDUSTRIES, LLC DIV AEROSSPACE BEARING OPERATION (USA)
SPECIFICATIONS
end_item_identificationISC/ISL CM850 BASE ENGINE
part_name_assigned_by_controlling_agencyVALVE INSERT
NSN3110-01-161-4028
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 3968074 · 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
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RETAINER FABRICATION METHOD: CAST
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BEARING SEAL TYPE: CONTACT
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LUBRICATION MATERIAL: GREASE
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OUTER RING WIDTH: 0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
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SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ALL EXTERNAL/EXPOSED METAL SURFACES
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SHIELD QUANTITY: 2
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STYLE DESIGNATOR: CONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING
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MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OUTER RING
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODCAST
BEARING SEAL TYPECONTACT
LUBRICATION MATERIALGREASE
OUTER RING WIDTH0.9950 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ALL EXTERNAL/EXPOSED METAL SURFACES
SHIELD QUANTITY2
STYLE DESIGNATORCONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE OUTER RING
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE ROLLER
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE SHIELD
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

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 3968074?
3968074 is a INSERT,ENGINE VALVE SEAT.
What is the NSN for 3968074?
3968074 is cataloged in the U.S. Government catalog under NSN 3110-01-161-4028. 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.