PartsTable
Technical Data Sheet
PartsTable / MRO / S-256
S-256 ✓ 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 ARRESTER,ELECTRICAL SURGE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, base_style: MINIATURE BAYONET, bore_shape: STRAIGHT, bulb_style: T (TUBULAR), head_style: HEXAGON, head_height: 0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-155-6229, 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→ S-256
NSN: 3110-00-155-6229
FSC: 3110
CAGE: 09605 — BOMAG USA SUB OF UNITED DOMINION INDUSTRIES LTD (USA)
SPECIFICATIONS
materialSTEEL OVERALL
base_styleMINIATURE BAYONET
bore_shapeSTRAIGHT
bulb_styleT (TUBULAR)
head_styleHEXAGON
head_height0.195 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
thread_class2A A
bore_diameter65.00 MILLIMETERS NOMINAL MM
overall_width0.606 INCHES NOMINAL IN
thread_length0.580 INCHES MINIMUM AND 0.750 INCHES MAXIMUM IN
load_directionRADIAL
overall_height1.070 INCHES NOMINAL IN
NSN3110-00-155-6229
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: S-256 · 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 DIAMETER: 65.00 MILLIMETERS NOMINAL MM
•
RETAINER FABRICATION METHOD: PRESSED
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
SURFACE FINISH: GROUND
•
LOAD DIRECTION: RADIAL
•
BORE SHAPE: STRAIGHT
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER65.00 MILLIMETERS NOMINAL MM
RETAINER FABRICATION METHODPRESSED
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
SURFACE FINISHGROUND
LOAD DIRECTIONRADIAL
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
MATERIALSTEEL OVERALL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 31
16X213SInterchangeable
interchangeable cross-reference
interchangeable
129556Interchangeable
interchangeable cross-reference
interchangeable
742155Interchangeable
interchangeable cross-reference
interchangeable
D121Interchangeable
interchangeable cross-reference
interchangeable
Y1174-3-2Interchangeable
interchangeable cross-reference
interchangeable
894A605BG013Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S-256?
S-256 is a ARRESTER,ELECTRICAL SURGE. It is classified as a MRO (MRO_GENERAL).
What parts can replace S-256?
There are 31 known substitutes for S-256: 16X213S, 129556, 742155 and 28 more. Substitute compatibility should be verified for your specific system.
Is S-256 still available?
S-256 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