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ST-286 — TRANSFORMER,AUDIO FREQUENCY

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

ST-286: TRANSFORMER,AUDIO FREQUENCY.

The TRANSFORMER,AUDIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_width: 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN, bore_shape: STRAIGHT, body_height: 0.600 INCHES MAXIMUM IN, body_length: 0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN, bore_diameter: 17.00 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-554-3238, 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
ST-286
NSN: 3110-00-554-3238
NIINs: 005543238, 008636945, 010158373
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 31007 — NAVISTAR INTERNATIONAL CORPORATION DBA NAVISTAR (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_width0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
bore_shapeSTRAIGHT
body_height0.600 INCHES MAXIMUM IN
body_length0.719 INCHES MINIMUM AND 0.781 INCHES MAXIMUM IN
bore_diameter17.00 MILLIMETERS NOMINAL MM
overall_width14.0 MILLIMETERS NOMINAL MM
inclosure_typeFULLY INCLOSED
load_directionRADIAL
surface_finishGROUND
mounting_methodTERMINAL SINGLE GROUP
frequency_rating10.0 KILOHERTZ MINIMUM AND 40.0 MEGAHERTZ MAXIMUM SINGLE COMPONENT
NSN3110-00-554-3238
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: ST-286 · 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
•
RETAINER FABRICATION METHOD: PRESSED
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
OVERALL OUTSIDE DIAMETER: 47.00 MILLIMETERS NOMINAL MM
•
BORE SHAPE: STRAIGHT
•
LOAD DIRECTION: RADIAL
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODPRESSED
INTERNAL FIT-UP DESIGNATIONSTANDARD
SURFACE FINISHGROUND
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH14.0 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER47.00 MILLIMETERS NOMINAL MM
BORE SHAPESTRAIGHT
LOAD DIRECTIONRADIAL
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE DIAMETER17.00 MILLIMETERS NOMINAL MM
SUBSTITUTES & CROSS-REFERENCES 10
303Reference document
Same NSN cross-reference
Reference document — Secondary reference
ND3303Reference document
Same NSN cross-reference
Reference document — Secondary reference
PP047BAZReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
6303JReference document
Same NSN cross-reference
Reference document — Secondary reference
S-1772Reference document
Same NSN cross-reference
Reference document — Secondary reference
3303XReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ST-286?
ST-286 is a TRANSFORMER,AUDIO FREQUENCY.
What parts can replace ST-286?
There are 10 known substitutes for ST-286: 303, ND3303, PP047BAZ and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ST-286?
ST-286 is cataloged in the U.S. Government catalog under NSN 3110-00-554-3238. This indicates validated use in U.S. government and defense supply chains.
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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.