PartsTable
Technical Data Sheet
PartsTable / MRO / MR4-0
MR4-0 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The RECEIVER SUBASSEMBLY,RADIO is a the manufacturer industrial component. Key specifications include special_features: WATERPROOF DESIGN, end_item_identification: BOAT, PERSONNEL, component_type_and_quantity: 1 RECTIFIER, part_name_assigned_by_controlling_agency: MR-40 MARINE STEREO AM/FM/CD/MP3. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-3257, 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
MRO→ MRO_GENERAL→ MR4-0
NSN: 3110-00-227-3257
FSC: 3110
CAGE: 92563 — MCGILL MANUFACTURING CO, INC (USA)
SPECIFICATIONS
special_featuresWATERPROOF DESIGN
end_item_identificationBOAT, PERSONNEL
component_type_and_quantity1 RECTIFIER
part_name_assigned_by_controlling_agencyMR-40 MARINE STEREO AM/FM/CD/MP3
NSN3110-00-227-3257
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MR4-0 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE FINISH: GROUND
•
OVERALL OUTSIDE DIAMETER: 3.2500 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
ALIGNMENT TYPE: RIGID
•
MATERIAL: STEEL OR COPPER ALLOY RETAINER
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESOIL HOLE AND OIL GROOVE IN OUTER RACE,MFR STD RETAINER
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER3.2500 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
ALIGNMENT TYPERIGID
MATERIALSTEEL OR COPPER ALLOY RETAINER
MATERIALSTEEL OUTER RING
OVERALL WIDTH1.7500 INCHES NOMINAL IN
STYLE DESIGNATORNON-SEPARABLE, WITH ROLLER RETAINER, HARDENED AND GROUND
BORE DIAMETER2.5000 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
793Interchangeable
interchangeable cross-reference
interchangeable
34159A9Interchangeable
interchangeable cross-reference
interchangeable
34159B9Interchangeable
interchangeable cross-reference
interchangeable
MR4-0MILG3278AInterchangeable
interchangeable cross-reference
interchangeable
MR4-0Interchangeable
interchangeable cross-reference
interchangeable
CK949Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MR4-0?
MR4-0 is a RECEIVER SUBASSEMBLY,RADIO. It is classified as a MRO (MRO_GENERAL).
What parts can replace MR4-0?
There are 12 known substitutes for MR4-0: 793, 34159A9, 34159B9 and 9 more. Substitute compatibility should be verified for your specific system.
Is MR4-0 still available?
MR4-0 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026