PartsTable
Technical Data Sheet
Download PDF

31251379 — BEARING HALF,SLEEVE

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

31251379: BEARING HALF,SLEEVE.

The BEARING HALF,SLEEVE is a the manufacturer industrial component. Key specifications include special_features: WITHOUT FLANGE YELLOW, end_item_identification: ENGINE,INBOARD,DIESEL,D3-100I 110HP, part_name_assigned_by_controlling_agency: MAIN BEARING. This part is cataloged in the U.S.

Government catalog under NSN 3120-01-644-2602, 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
31251379
NSN: 3120-01-644-2602
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 61724 — VOLVO PENTA OF THE AMERICAS INC (USA)
SPECIFICATIONS
special_featuresWITHOUT FLANGE YELLOW
end_item_identificationENGINE,INBOARD,DIESEL,D3-100I 110HP
part_name_assigned_by_controlling_agencyMAIN BEARING
NSN3120-01-644-2602
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 31251379 · OEM ⚠ VERIFY BEFORE ORDERING ABEC grade: higher = tighter tolerance = higher cost. ABEC-1 is standard, ABEC-7+ for precision spindles. Open, shielded (ZZ), and sealed (2RS) versions have different max RPM ratings ✓ BROKER TIP 2RS = sealed for life (no maintenance). ZZ = shielded, re-greaseable. Open = must lubricate on install. Common interchange: 6205-2RS = 6205-2RSR = 6205-DDU (same bearing, different suffix) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESWITHOUT FLANGE YELLOW
PART NAME ASSIGNED BY CONTROLLING AGENCYMAIN BEARING
END ITEM IDENTIFICATIONENGINE,INBOARD,DIESEL,D3-100I 110HP
OTHER ITEMS IN FSC 3120 — Bearings, Plain, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3120-00-001-1288 3120-00-001-1835 3120-00-001-1838 3120-00-001-1928 3120-00-001-1934 3120-00-001-3933 3120-00-001-3937 3120-00-001-3938
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
Ready to buy 31251379?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 31251379?
31251379 is a BEARING HALF,SLEEVE.
What is the NSN for 31251379?
31251379 is cataloged in the U.S. Government catalog under NSN 3120-01-644-2602. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 31251379

✓ 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.