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Technical Data Sheet
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581-6726890-38 — 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,PLAIN,SPHERICAL is a the manufacturer industrial component. Key specifications include material: NICKEL AND COPPER OVERALL, special_features: NEXT HIGHER ASSEMBLY IS FWD AND AFT COMPLIANT SHEAVE ASSEMBLY, end_item_identification: SEAFWOLF CLASS SSN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-487-6373, 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
581-6726890-38
NSN: 3120-01-487-6373
FSC: 3120
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialNICKEL AND COPPER OVERALL
special_featuresNEXT HIGHER ASSEMBLY IS FWD AND AFT COMPLIANT SHEAVE ASSEMBLY
end_item_identificationSEAFWOLF CLASS SSN
NSN3120-01-487-6373
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 581-6726890-38 · 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
KEY FEATURES
•
MATERIAL: NICKEL AND COPPER OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
END ITEM IDENTIFICATIONSEAFWOLF CLASS SSN
SPECIAL FEATURESNEXT HIGHER ASSEMBLY IS FWD AND AFT COMPLIANT SHEAVE ASSEMBLY
MATERIALNICKEL AND COPPER OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
6726890Interchangeable
interchangeable cross-reference
interchangeable
KSC348656VInterchangeable
interchangeable cross-reference
interchangeable
581-6726890-37Interchangeable
interchangeable cross-reference
interchangeable
14985701Interchangeable
interchangeable cross-reference
interchangeable
KNRJ96-UDV-062-2Interchangeable
interchangeable cross-reference
interchangeable
14985724Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 581-6726890-38?
581-6726890-38 is a BEARING,PLAIN,SPHERICAL.
What parts can replace 581-6726890-38?
There are 21 known substitutes for 581-6726890-38: 6726890, KSC348656V, 581-6726890-37 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 581-6726890-38?
581-6726890-38 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-487-6373. 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: August 2026