PartsTable
Technical Data Sheet
A1491 ✓ Verified by PartsTable
· 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,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include special_features: FULL COLOR, WITH WHITE 67101, SCARLET 67111, AIR FORCE YELLOW 67103, EMERALD 67128, BROWN 67136 AND OLD GLORY BLUE 67131, attachment_method: HOOK FASTENER, features_provided: EMBROIDERED, design_designation: HEADQUARTER COMPANY UNITED STATES ARMY, department_designation: US ARMY, procurement_group_code: 12780. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-3597, 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
A1491
NSN: 3110-00-156-3597
FSC: 3110
CAGE: 83590 — SMITH METER INC PARTS OPN (USA)
SPECIFICATIONS
special_featuresFULL COLOR, WITH WHITE 67101, SCARLET 67111, AIR FORCE YELLOW 67103, EMERALD 67128, BROWN 67136 AND OLD GLORY BLUE 67131
attachment_methodHOOK FASTENER
features_providedEMBROIDERED
design_designationHEADQUARTER COMPANY UNITED STATES ARMY
department_designationUS ARMY
procurement_group_code12780
nondefinitive_spec/std_dataI STYLE AND I TYPE AND II CLASS
NSN3110-00-156-3597
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A1491 · 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: 45.00 MILLIMETERS NOMINAL MM
LOAD DIRECTION: RADIAL
SEAL QUANTITY: 2
MATERIAL: STEEL OVERALL
BORE SHAPE: STRAIGHT
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
BEARING SEAL TYPE: CONTACT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: DOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER45.00 MILLIMETERS NOMINAL MM
LOAD DIRECTIONRADIAL
SEAL QUANTITY2
MATERIALSTEEL OVERALL
BORE SHAPESTRAIGHT
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BEARING SEAL TYPECONTACT
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONDOD-G-24508 MIL SPEC SINGLE MATERIAL RESPONSE
INTERNAL FIT-UP DESIGNATIONSTANDARD
OUTER RING WIDTH0.8270 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
A-1-491Interchangeable
interchangeable cross-reference
interchangeable
MIL-DTL-14652BInterchangeable
interchangeable cross-reference
interchangeable
K8207Interchangeable
interchangeable cross-reference
interchangeable
8207Interchangeable
interchangeable cross-reference
interchangeable
GPW10153AInterchangeable
interchangeable cross-reference
interchangeable
7371554Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1491?
A1491 is a BEARING,BALL,ANNULAR.
What parts can replace A1491?
There are 20 known substitutes for A1491: A-1-491, MIL-DTL-14652B, K8207 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1491?
A1491 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-3597. This indicates validated use in U.S. government and defense supply chains.
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