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Technical Data Sheet
PartsTable / COMPONENT / MD20349
MD20349 ✓ 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

The BEARING,SLEEVE is a the manufacturer industrial component. Key specifications include body_width: 1.750 INCHES NOMINAL IN, body_height: 2.312 INCHES NOMINAL IN, body_length: 2.062 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, mounting_method: UNTHREADED HOLE(S) SINGLE GROUP, frequency_rating: 380.0 HERTZ MINIMUM AND 1.6 KILOHERTZ MAXIMUM SINGLE COMPONENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-739-0783, 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
MD20349
NSN: 3120-00-739-0783
FSC: 3120
CAGE: 76558 — MWM-MURPHY DIESEL CO (USA)
SPECIFICATIONS
body_width1.750 INCHES NOMINAL IN
body_height2.312 INCHES NOMINAL IN
body_length2.062 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
mounting_methodUNTHREADED HOLE(S) SINGLE GROUP
frequency_rating380.0 HERTZ MINIMUM AND 1.6 KILOHERTZ MAXIMUM SINGLE COMPONENT
reliability_indicatorNOT ESTABLISHED
end_item_identificationSAFETY VALVE
winding_operating_current300.0 MILLIAMPERES AC MAXIMUM SINGLE COMPONENT SINGLE SECONDARY
winding_operating_voltage115.00 AC VOLTS NOMINAL SINGLE COMPONENT SINGLE PRIMARY
mounting_facility_quantity2 SINGLE GROUP
terminal_type_and_quantity4 TAB, SOLDER LUG
NSN3120-00-739-0783
COMPONENT DIAGRAM
BALL BEARING — SEAL TYPE DETERMINES MAINTENANCE OD: — · BORE: — · WIDTH: — SEAL: Open · PN: MD20349 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
20349Interchangeable
interchangeable cross-reference
interchangeable
220565Interchangeable
interchangeable cross-reference
interchangeable
978Interchangeable
interchangeable cross-reference
interchangeable
325C123Interchangeable
interchangeable cross-reference
interchangeable
76-8Interchangeable
interchangeable cross-reference
interchangeable
97Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MD20349?
MD20349 is a BEARING,SLEEVE.
What parts can replace MD20349?
There are 12 known substitutes for MD20349: 20349, 220565, 978 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MD20349?
MD20349 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3120-00-739-0783. 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