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Datasheet. 12840 specification
An overall measurement taken at right angles to the length of an item,in distinction from thickness.
16.0 mm
The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.
50.0 mm
The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.
80.0 mm
An additional finishing process by which the surface of an item is altered in respect to polishing,grinding,and the like.
ground
The means used in manufacturing the retainer.
machined
The physical configuration of the bore.
straight
The ability of the bearing to provide freedom for axial movement of the shaft relative to the housing.
one direction
The clearance between the bearing rings and the rolling elements.
0.0027in. radial and 0.0037in. radial
The standard tolerance designation indicating the manufactured limitations of the item as established by the various specifications and standards.
rbec no.1
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
stabilized for operation from M65 deg f to P250 deg f, lubricated w/MIL-L-23699
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel inner ring
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel outer ring
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel retainer
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel roller
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 6415 assn std single material response retainer
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 6490 assn std single material response outer ring
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 6490 assn std single material response roller
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the material.
ams 6490 assn std single material response inner ring
An indication of the precious material and its location in the item.
retainer silver
Identification of the precious material contained in the item.
silver
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
252e single row, ONE-Direction locating, two lip inner ring, one lip outer ring, separable
Answers.
1EA
252e single row, one-direction locating, two lip inner ring, one lip outer ring, separable
Steel roller
Steel retainer
Steel outer ring
Steel inner ring
16.0 millimeters
Schedule B number: 8482500000
nmfc 114820
Other cylindrical roller bearings
FSC 3110 ⁓ Bearings, antifriction, unmounted
Note-this class includes bearings that generally have roller or balls confined by an inner and outer ring to relieve friction in/on/around rotating/moving mechanisms.
Excluding plain bearings (fsc 3120); jewel bearings (fsc 3120)
NSN 3110-00-421-7425 BEARING,ROLLER,CYLINDRICAL
252e single row, one-direction locating, two lip inner ring, one lip outer ring, separable stabilized for operation from M65 deg f to P250 deg f, lubricated w/mil-l-23699 50.0mm bore diameter 16.0mm overall width
- NIIN
- 004217425
- NIIN Date
- 12/21/70
- Schedule B
- 8482500000
- Name Code
- 00015
- FIIG
- A044A0
- Item Weight
- 0.800lbs
- Item Dimensions
- 37 X 37 X 12
- QUP
- 1
- Historical Price
- $1,765.00 EA
- DEMIL / ITAR
- USML/ITAR controlled item (Code: B)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- Contains silver
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
| 1. | AAV9110RW1MSRA1732 | Cage 21335 |
| 2. | 5RFH110-15 | Cage 78118 |
| 3. | 369A5199-3 | Cage 8V613 |
| 4. | 369A5199-3 | Cage 02731 |
Major End Users Countries and entities
- - Spain
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- Special Handling
- Low sensitivity, category iv, aa&e, unclassified
- LTL (less than a truck load rating)
- 77.5
- LCL (less than a car load rating)
- 77.5
- Special Cargo
- No special type of cargo code applicable
- Air Freight (Minimum cargo door size required)
- Shipment is not a consolidation and does not exceed 84 inches in any dimension.
- Customs Requirement Classification
- Construction materials: includes paint and related materials, prefabricated building, wood products, metal and composition mater
- Commodity (for shipments via water)
- Bearings
- NMFC (national motor freight code)
- 114820 BEARINGS/BUSHINGS NOI BALL/ROLLER
- UFC (universal freight code)
- 58860
Similar by Design Other bearings with similar characteristics
Nothing similar to this part number was found in our inventory
12840 / Bearing,roller,cylindricalWhat is the formal definition of this item?
A nonadjustable roller bearing consisting of a single or multiple-row of hardened cylindrical rollers and a retainer used with or without inner or oute r rings. excludes bearing, roller, airframe.
