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MA5215 — RELAY,ELECTROMAGNETIC

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

MA5215: RELAY,ELECTROMAGNETIC.

The RELAY,ELECTROMAGNETIC is a the manufacturer industrial component. Key specifications include shape: IRREGULAR, material: ALUMINUM ALLOY, face_size: 2.812 INCHES BY 2.250 INCHES W IN, bore_shape: STRAIGHT, usage_design: USED AS STARTOR OF MAGNETO, bore_diameter: 2.9528 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-159-1351, 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
MA5215
NSN: 3110-00-159-1351
NIINs: 001591351, 005026552
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 01212 — FEDERAL-MOGUL CORP GOVERNMENT SALES DEPT (USA)
SPECIFICATIONS
shapeIRREGULAR
materialALUMINUM ALLOY
face_size2.812 INCHES BY 2.250 INCHES W IN
bore_shapeSTRAIGHT
usage_designUSED AS STARTOR OF MAGNETO
bore_diameter2.9528 INCHES NOMINAL IN
overall_width2.250 INCHES NOMINAL IN
overall_length2.812 INCHES NOMINAL IN
surface_finishGROUND
special_markingsA1
style_designatorINNER RING, ROLLER, CYLINDRICAL
overall_thickness1.094 INCHES NOMINAL IN
NSN3110-00-159-1351
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MA5215 · 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
•
STYLE DESIGNATOR: INNER RING, ROLLER, CYLINDRICAL
•
OVERALL OUTSIDE DIAMETER: 3.5040 INCHES NOMINAL IN
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
BORE DIAMETER: 2.9528 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORINNER RING, ROLLER, CYLINDRICAL
OVERALL WIDTH1.6250 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER3.5040 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER2.9528 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 3
A5215Reference document
Same NSN cross-reference
Reference document — Secondary reference
736774Reference document
Same NSN cross-reference
Reference document — Secondary reference
4891-736774Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 MA5215?
MA5215 is a RELAY,ELECTROMAGNETIC.
What parts can replace MA5215?
There are 3 known substitutes for MA5215: A5215, 736774, 4891-736774. Substitute compatibility should be verified for your specific system.
What is the NSN for MA5215?
MA5215 is cataloged in the U.S. Government catalog under NSN 3110-00-159-1351. 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.