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Technical Data Sheet
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AM-312 — BEARING,BALL,THRUST

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

AM-312: BEARING,BALL,THRUST.

The BEARING,BALL,THRUST is a the manufacturer industrial component. Key specifications include shape: RECTANGULAR, material: STEEL CORROSION RESISTING, overall_width: 6.9 INCHES NOMINAL IN, overall_height: 2.8 INCHES NOMINAL IN, overall_length: 6.7 INCHES NOMINAL IN, special_features: 2.2 POUND WEIGHT, WHITE COLOR LBS. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-278-6868, 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
AM-312
NSN: 3110-00-278-6868
NIINs: 002786868, 017087657
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 91448 — ONE STOP INDUSTRIES INC (USA)
SPECIFICATIONS
shapeRECTANGULAR
materialSTEEL CORROSION RESISTING
overall_width6.9 INCHES NOMINAL IN
overall_height2.8 INCHES NOMINAL IN
overall_length6.7 INCHES NOMINAL IN
special_features2.2 POUND WEIGHT, WHITE COLOR LBS
part_name_assigned_by_controlling_agencyPOLE MOUNT ADAPTER
NSN3110-00-278-6868
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: AM-312 · 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: MACHINED
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: GROOVED RACE SURFACE
•
THRUST DIRECTIONAL CAPABILITY DESIGNATION: SINGLE
•
OVERALL OUTSIDE DIAMETER: 5.0000 INCHES NOMINAL IN
•
BORE SMALLEST DIAMETER: 3.5000 INCHES NOMINAL IN
•
ALIGNMENT TYPE: RIGID
TECHNICAL CHARACTERISTICS
RETAINER FABRICATION METHODMACHINED
OVERALL HEIGHT1.1250 INCHES NOMINAL IN
SURFACE FINISHGROUND
STYLE DESIGNATORGROOVED RACE SURFACE
THRUST DIRECTIONAL CAPABILITY DESIGNATIONSINGLE
OVERALL OUTSIDE DIAMETER5.0000 INCHES NOMINAL IN
BORE SMALLEST DIAMETER3.5000 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
STANDARD TOLERANCE DESIGNATIONABEC NO.1
MATERIALCOPPER ALLOY RETAINER
SUBSTITUTES & CROSS-REFERENCES 1
1026Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is AM-312?
AM-312 is a BEARING,BALL,THRUST.
What parts can replace AM-312?
There is 1 known substitute for AM-312: 1026. Substitute compatibility should be verified for your specific system.
What is the NSN for AM-312?
AM-312 is cataloged in the U.S. Government catalog under NSN 3110-00-278-6868. 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.