Product Details | DUPLEX BALL BEARING

3110-01-256-7206 Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

Part Alternates: 2060400329, 206-040-032-9, 9316WI105, 3110-01-256-7206, 01-256-7206, 3110012567206, 012567206

Bearings | Bearings, Antifriction, Unmounted

Supply Group (FSG) NSN Assign. NIIN
31 08 JUN 1987 01-256-7206

Drawings & Photos | NSN 3110-01-256-7206


Demand History | NSN 3110-01-256-7206

Part Number Request Date QTY Origin
3110-01-256-7206 2012-03-66 5 DIBBS

Cross Reference | NSN 3110-01-256-7206

Part Number Cage Code Manufacturer
206-040-032-9 78118 MPB CORPORATION DBA TIMKEN AEROSPACE
206-040-032-9 97499 BELL HELICOPTER TEXTRON INC.
9316WI105 21335 TIMKEN COMPANY, THE DIV TIMKEN AEROSPACE

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Technical Data | NSN 3110-01-256-7206

Characteristic Specifications
MATERIAL STEEL COMP M50 BALL STEEL COMP 4340 RETAINER
MATERIAL DOCUMENT AND CLASSIFICATION AMS6490 ASSN STD SINGLE MATERIAL RESPONSE BALL AMS6415 ASSN STD SINGLE MATERIAL RESPONSE RETAINER
STYLE DESIGNATOR 90A UNIVERSAL GROUND FACES, COUNTERBORED OUTER RING, NON-SEPARABLE
OVERALL WIDTH 1.2398 INCHES MINIMUM AND 1.2598 INCHES MAXIMUM
BORE DIAMETER 3.1493 INCHES MINIMUM AND 3.1496 INCHES MAXIMUM
OVERALL OUTSIDE DIAMETER 4.3304 INCHES MINIMUM AND 4.3307 INCHES MAXIMUM
STANDARD TOLERANCE DESIGNATION ABEC NO.5
SURFACE FINISH GROUND
LOAD DIRECTION RADIAL
MANUFACTURERS CODE 97499
MFR SOURCE CONTROLLING REFERENCE 206-040-032-9

Restrictions/Controls & Freight Information | NSN 3110-01-256-7206

Category Code Description
Shelf-Life Code:0Nondeteriorative
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.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
Criticality Code:X The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:0Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)
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 KE Naval ICP
Philadelphia, PA 19111
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
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

Management | NSN 3110-01-256-7206

Category Code Description
Cognizance Codes9BNavy-owned stocks of DLA material
Naval Inventory Control Point, Mechanicsburg
Special Material Content9 Non-Hazardous or Non-Sensitive Item, does not require hazardous or special handling, packaging or precautions
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDNDepartment of the Navy
Service OrganizationNU.S. Navy
Acquisition Advice CodesZINSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each