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PartsTable / COMPONENT / D405320 ITEM 3
D405320 ITEM 3 ✓ Verified by PartsTable
— · 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

COVER,ELECTRONIC COMMUNICATION E. Key specifications include overall_length: 0.9375 INCHES NOMINAL IN, body_outside_diameter: 2.1654 INCHES MINIMUM AND 2.1662 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-237-5007, 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
D405320 ITEM 3
NSN: 3120-01-237-5007
FSC: 3120
CAGE: 63504 — PALFINGER MARINE USA, LLC (USA)
SPECIFICATIONS
overall_length0.9375 INCHES NOMINAL IN
body_outside_diameter2.1654 INCHES MINIMUM AND 2.1662 INCHES MAXIMUM IN
NSN3120-01-237-5007
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: D405320 ITEM 3 · 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
•
BODY OUTSIDE DIAMETER: 2.1654 INCHES MINIMUM AND 2.1662 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.9375 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER2.1654 INCHES MINIMUM AND 2.1662 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
51211Interchangeable
interchangeable cross-reference
interchangeable
SB-1Interchangeable
interchangeable cross-reference
interchangeable
TC-01ECInterchangeable
interchangeable cross-reference
interchangeable
8-20A-M-ECInterchangeable
interchangeable cross-reference
interchangeable
SE-08-CInterchangeable
interchangeable cross-reference
interchangeable
4822441Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is D405320 ITEM 3?
D405320 ITEM 3 is a COVER,ELECTRONIC COMMUNICATION E.
What parts can replace D405320 ITEM 3?
There are 6 known substitutes for D405320 ITEM 3: 51211, SB-1, TC-01EC and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for D405320 ITEM 3?
D405320 ITEM 3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-01-237-5007. 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: July 2026