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Technical Data Sheet
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RS312 — Technical Data Sheet

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— · TAPERED BEARING
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 BEARING,ROLLER,CYLINDRICAL is a the manufacturer industrial component. Key specifications include material: RUBBER NEOPRENE BODY, bore_shape: STRAIGHT, ring_style: SPECIAL FLAT, usage_design: EXTERNAL, bore_diameter: 60.0 MILLIMETERS NOMINAL MM, overall_width: 31.0 MILLIMETERS NOMINAL MM. This part is cataloged in the Federal Logistics Information System under NSN 3110-00-155-7359, 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
RS312
NSN: 3110-00-155-7359
FSC: 3110
CAGE: 05527 — GWILLIAM COMPANY, INC. DIV BALL & ROLLER BEARING DIVISION (USA)
SPECIFICATIONS
materialRUBBER NEOPRENE BODY
bore_shapeSTRAIGHT
ring_styleSPECIAL FLAT
usage_designEXTERNAL
bore_diameter60.0 MILLIMETERS NOMINAL MM
overall_width31.0 MILLIMETERS NOMINAL MM
overall_height0.200 INCHES NOMINAL IN
surface_finishGROUND
inside_diameter2.970 INCHES MINIMUM AND 3.000 INCHES MAXIMUM IN
major_thickness0.058 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
mounting_methodCOMPRESSION
strength_ratingERR-060
NSN3110-00-155-7359
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: RS312 · 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
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
STYLE DESIGNATOR: SINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
•
MATERIAL: STEEL INNER RING
•
INTERNAL FIT-UP DESIGNATION: STANDARD
TECHNICAL CHARACTERISTICS
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
STYLE DESIGNATORSINGLE ROW, NON-LOCATING, TWO LIP INNER RING, CYLINDRICAL OUTER RING, SEPARABLE
MATERIALSTEEL INNER RING
MATERIALSTEEL ROLLER
MATERIALSTEEL OUTER RING
INTERNAL FIT-UP DESIGNATIONSTANDARD
OVERALL WIDTH31.0 MILLIMETERS NOMINAL MM
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER130.0 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
N3 1/2AMPSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
N3 1/2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
333 03.5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
R360InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
50023-312-1010InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
NM-60InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is RS312?
RS312 is a BEARING,ROLLER,CYLINDRICAL.
What parts can replace RS312?
There are 11 known substitutes for RS312: N3 1/2AMPS, N3 1/2, 333 03.5 and 8 more. Substitute compatibility should be verified for your specific system.
Is RS312 still available?
RS312 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: September 2026