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Technical Data Sheet
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G51230 — Technical Data Sheet

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— · BALL BEARING
WHAT YOU NEED TO KNOW
2RS = sealed for life, ZZ = shielded re-greaseable ABEC grade: higher = tighter tolerance
ABEC-1 standard, ABEC-7+ for precision spindles
PRODUCT OVERVIEW

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include end_item_identification: GENERATOR,AC 600 VAC VAC, part_name_assigned_by_controlling_agency: BEARING SLEEVE RETAINER. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 3120-01-524-6066, 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
G51230
NSN: 3120-01-524-6066
FSC: 3120
CAGE: 52142 — NATIONAL OILWELL VARCO INC DBA NATIONAL OILWELL (USA)
SPECIFICATIONS
end_item_identificationGENERATOR,AC 600 VAC VAC
part_name_assigned_by_controlling_agencyBEARING SLEEVE RETAINER
NSN3120-01-524-6066
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: G51230 · 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
PART NAME ASSIGNED BY CONTROLLING AGENCYBEARING SLEEVE RETAINER
END ITEM IDENTIFICATIONGENERATOR,AC 600 VAC VAC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
N51230InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
51230InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
19909NInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
31389InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is G51230?
G51230 is a BEARING,SLEEVE.
What parts can replace G51230?
There are 4 known substitutes for G51230: N51230, 51230, 19909N and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for G51230?
G51230 is cataloged in the Federal Logistics Information System under NSN 3120-01-524-6066. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026