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Technical Data Sheet
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20-3866 — BEARING

✓ Government record, cited
— · BALL BEARING
PRODUCT OVERVIEW

20-3866: BEARING.

The BEARING is a the manufacturer industrial component. Key specifications include end_item_identification: 2320011231602. This part is cataloged in the U.S.

Government catalog under NSN 3120-00-019-1005, 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
20-3866
NSN: 3120-00-019-1005
NIINs: 000191005, 012771765, 012887904
FSC: 3120 — Bearings, Plain, Unmounted
CAGE: 84548 — FLIGHT RESEARCH INC AN INDEPENDENTLY OWNED AND OPERATED BUSINESS (USA)
SPECIFICATIONS
end_item_identification2320011231602
NSN3120-00-019-1005
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: 20-3866 · 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
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FSC APPLICATION DATA: RADIO AND TELEVISION COMMUNICATION EQUIPMENT,EXCEPT AIRBORNE
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATARADIO AND TELEVISION COMMUNICATION EQUIPMENT,EXCEPT AIRBORNE
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20-3866?
20-3866 is a BEARING.
What is the NSN for 20-3866?
20-3866 is cataloged in the U.S. Government catalog under NSN 3120-00-019-1005. 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.