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6726890 — BEARING,PLAIN,SPHERICAL

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

6726890: BEARING,PLAIN,SPHERICAL.

The BEARING,PLAIN,SPHERICAL is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, block_type: REGULAR, construction: LAMINATED, shell_length: 61.750 INCHES NOMINAL IN, end_similarity: NOT IDENTICAL, overall_length: 26.9100 INCHES MINIMUM AND 26.9700 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog 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
6726890
NSN: 3120-01-487-6373
NIINs: 014876373, 014876377, 014876387, 014876438, 014876519, 014876740, 014876744, 014876763, 014876766, 014876924, 014885565, 014891464
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
block_typeREGULAR
constructionLAMINATED
shell_length61.750 INCHES NOMINAL IN
step_quantity5
end_similarityNOT IDENTICAL
overall_length26.9100 INCHES MINIMUM AND 26.9700 INCHES MAXIMUM IN
first_end_styleEXTERNAL THREADED
sheave_quantity2
second_end_styleCROSS DRILLED HOLE AND SPLINED (STRAIGHT)
special_featuresNEXT HIGHER ASSEMBLY IS FWD AND FT COMPLIANT SHEAVE ASSEMBLY
style_designatorOVAL PATTERN
NSN3120-01-487-6373
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 6726890 · 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
SPECIAL FEATURESNEXT HIGHER ASSEMBLY IS FWD AND AFT COMPLIANT SHEAVE ASSEMBLY
END ITEM IDENTIFICATIONSEAFWOLF CLASS SSN
MATERIALNICKEL AND COPPER OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
14985726Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
581-6726890-38Reference 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 6726890?
6726890 is a BEARING,PLAIN,SPHERICAL.
What parts can replace 6726890?
There are 2 known substitutes for 6726890: 14985726, 581-6726890-38. Substitute compatibility should be verified for your specific system.
What is the NSN for 6726890?
6726890 is cataloged in the U.S. Government catalog under NSN 3120-01-487-6373. 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.