51721

51721 Roller Cylindrical Bearing

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Datasheet. 51721 specification

Overall Width
An overall measurement taken at right angles to the length of an item,in distinction from thickness.

0.5570in. and 0.5620in.

Bore Diameter
The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.

2.4350in. and 2.4400in.

Overall Outside Diameter
The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.

3.3420in. and 3.3430in.

Surface Finish
An additional finishing process by which the surface of an item is altered in respect to polishing,grinding,and the like.

ground

Locating Feature
The ability of the bearing to provide freedom for axial movement of the shaft relative to the housing.

nonlocating

Special Features
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.

extended inner ring

Answers.

What quantity is this sold in?

1EA

What is the overall width?

0.5570 inches minimum and 0.5620 inches maximum

What is the NSN for 51721?

3110-00-083-1282

How is this classified for shipping?

Schedule B number: 8482500000
nmfc 114820
Other cylindrical roller bearings

What's the federal classification of 51721?

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 3110-00-083-1282 BEARING,ROLLER,CYLINDRICAL

extended inner ring 2.4350" bore diameter 0.5570" overall width

NIIN
000831282
NIIN Date
01/01/63
Schedule B
8482500000 
Name Code
00015
FIIG
A044A0
Item Weight
1.000lbs
Item Dimensions
--
QUP
Historical Price
$3,145.58 EA
DEMIL / ITAR
USML/ITAR controlled item (Code: B)
Hazmat
No hazard information available from HMIRS.
MSDS
N/A
Precious Metals
Metal content unknown
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. MCS1912-903 Cage 51600
2. MCS1912-906 Cage 51600
3. BR1171-1RW Cage 92563

Major End Users Countries and entities

  • - Department of The Air Force 
  • - Department of The Army 
  • - Department of The Navy 
  • - Poland 
  • - Brazil 
  • - Spain 
  • - Australia 
  • - New Zealand 
  • - Republic of Korea 
  • - United Kingdom 
  • - Denmark 
  • - Greece 
  • - Turkey 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
77.5 
LCL (less than a car load rating)
Unknown
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
Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing 
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

51721 / 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.