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SM8-12A — BEARING,ROLLER,ROD END

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

SM8-12A: BEARING,ROLLER,ROD END.

The BEARING,ROLLER,ROD END is a the manufacturer industrial component. Key specifications include material: STEEL COMP 430 SHIELD, shank_style: EXTERNALLY THREADED W/SLOT, thread_class: 3A A, bore_diameter: 0.5000 INCHES NOMINAL IN, alignment_type: SELF-ALIGNING, overall_length: 5.1650 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-080-0848, 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
SM8-12A
NSN: 3110-00-080-0848
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 77896 — REXNORD INDUSTRIES, LLC DIV AEROSSPACE BEARING OPERATION (USA)
SPECIFICATIONS
materialSTEEL COMP 430 SHIELD
shank_styleEXTERNALLY THREADED W/SLOT
thread_class3A A
bore_diameter0.5000 INCHES NOMINAL IN
seal_quantity2
alignment_typeSELF-ALIGNING
overall_length5.1650 INCHES NOMINAL IN
shank_diameter0.8750 INCHES NOMINAL IN
shield_quantity2
inner_ring_width1.0620 INCHES NOMINAL IN
outer_ring_width0.7200 INCHES NOMINAL IN
special_featuresWITH GREASE FITTING
NSN3110-00-080-0848
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: SM8-12A · 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
•
SHANK DIAMETER: 0.8750 INCHES NOMINAL IN
•
SHANK THREAD LENGTH: 2.3100 INCHES NOMINAL IN
•
BEARING SEAL TYPE: CONTACT
•
LUBRICATION MATERIAL: GREASE
•
OUTER RING WIDTH: 0.7200 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ALL EXTERNAL/EXPOSED METAL SURFACES
•
SHIELD QUANTITY: 2
•
STYLE DESIGNATOR: SINGLE ROW, CONCAVE ROLLERS
TECHNICAL CHARACTERISTICS
SHANK DIAMETER0.8750 INCHES NOMINAL IN
SHANK THREAD LENGTH2.3100 INCHES NOMINAL IN
BEARING SEAL TYPECONTACT
LUBRICATION MATERIALGREASE
OUTER RING WIDTH0.7200 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 2 FED SPEC SINGLE TREATMENT RESPONSE ALL EXTERNAL/EXPOSED METAL SURFACES
SHIELD QUANTITY2
STYLE DESIGNATORSINGLE ROW, CONCAVE ROLLERS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7493 MIL SPEC SINGLE MATERIAL RESPONSE ROD END BODY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-7420 MIL SPEC SINGLE MATERIAL RESPONSE ROLLER
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
MR8AGReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SM8-12A?
SM8-12A is a BEARING,ROLLER,ROD END.
What parts can replace SM8-12A?
There is 1 known substitute for SM8-12A: MR8AG. Substitute compatibility should be verified for your specific system.
What is the NSN for SM8-12A?
SM8-12A is cataloged in the U.S. Government catalog under NSN 3110-00-080-0848. 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.