Product Details | ANNULAR BALL BEARING

3110-00-891-5644 A cylindrical device in which the inner or outer ring turns upon a single or double row of hardened balls which roll easily between the two rings, thus minimizing friction. For items with faces specially ground for duplex mounting see BEARING, BALL, DUPLEX. Excludes BEARING, BALL, AIRFRAME.

Part Alternates: 1810K12, 8516P12, 3110-00-891-5644, 00-891-5644, 3110008915644, 008915644

Bearings | Bearings, Antifriction, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 01 JAN 1962 00-891-5644

Cross Reference | NSN 3110-00-891-5644

Part Number Cage Code Manufacturer
1810K12 40920 MPB CORPORATION DBA TIMKEN SUPER PRECISION
1810K12 83086 NEW HAMPSHIRE BALL BEARINGS, INC. DIV HITECH DIVISION
8516P12 40920 MPB CORPORATION DBA TIMKEN SUPER PRECISION

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Technical Data | NSN 3110-00-891-5644

Characteristic Specifications
OVERALL WIDTH 0.1562 INCHES NOMINAL
BORE DIAMETER 0.3125 INCHES NOMINAL
OVERALL OUTSIDE DIAMETER 0.5000 INCHES NOMINAL
STANDARD TOLERANCE DESIGNATION ABEC NO.7
BORE SHAPE STRAIGHT
SURFACE FINISH GROUND
LOAD DIRECTION RADIAL
INTERNAL CLEARANCE 0.0001 INCHES MINIMUM RADIAL AND 0.0002 INCHES MAXIMUM RADIAL

Restrictions/Controls & Freight Information | NSN 3110-00-891-5644

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious metal type is unknown
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Category Code Description
NMF Description 114820 BEARINGS/BUSHINGS NOI BALL/ROLLER
Less than car load rating P 77.5
Less than truck load rating P 77.5
Water commodity Code 742 unknown
Originating Activity Code XX
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity V Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable