21-256

21256 Sleeve Bearing Half

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Datasheet. 21-256 specification

Overall Length
The dimension measured along the longitudinal axis with terminated points at the extreme ends of the item.

1.6180in. and 1.6200in. ⁓1-5/8"

Body Outside Diameter
The length of a straight line which passes through the center of the body,and terminates at the outside circumference.

2.6240in. and 2.6250in.

Body Inside Diameter
The length of a straight line which passes through the center of a body,and terminates at the inside circumference.

2.4380in. and 2.4385in.

Left Flange Outside Diameter

3.3125in.

Right Flange Outside Diameter

3.3125in.

Left Flange Width

0.0875in. and 0.0895in.

Right Flange Width

0.0875in. and 0.0895in.

Lubricant Accommodation Style
The style designation indicating the configuration that most nearly corresponds to the means whereby the lubricant is set into the item.

grooved circular

Locking Lug Height
A measurement from the outer surface of an item to the outermost point of the locking lug.

0.0450in. and 0.0550in.

Locking Lug Length
The distance,measured along a straight line parallel to the longitudinal axis of the lug,from one edge to the other.

0.1875in. and 0.2188in.

Locking Lug Width
The distance,measured along a straight line,perpendicular to the longitudinal axis of the lug,from one edge to the other.

0.1750in. and 0.1800in.

Antirotation/lubrication Type And Quantity
Indicates the type and number of features used for the introduction of a lubricant or an antirotational device.

1 hole

Surface Groove Location And Quantity
Indicates the location and number of grooves on the surface of the item.

1 internal

Distance From Lug End To End Of Bearing

0.4280in. and 0.4375in.

Style Designator
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.

18d half sleeve, external flanges both ends

Answers.

What quantity is this sold in?

1EA

What is the style?

18d half sleeve, external flanges both ends

What is the NSN for 21-256?

3120-00-448-3472

How is this classified for shipping?

Schedule B number: 8483308090
nmfc 114850
Plain shaft bearings, without housing, except spherical

What's the federal classification of 21-256?

FSC 3120 ⁓ Bearings, plain, unmounted

Note-bearings in this class are generally one piece that retain and position moving and/or rotating parts. they may have lubrication grooves/fittings/facilities or include pre-lubrication.

Excluding antifriction bearings (fsc 3110); mounted bearings (fsc 3130).

NSN 3120-00-448-3472 BEARING HALF,SLEEVE

18d half sleeve, external flanges both ends 1.6180" overall length

NIIN
004483472
NIIN Date
01/01/63
Schedule B
8483308090 
Name Code
22210
FIIG
A045A0
Item Weight
0.000lbs
Item Dimensions
--
QUP
Historical Price
$4.03 EA
DEMIL / ITAR
Uncontrolled item (Code A)
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

Major End Users Countries and entities

  • - Department of The Navy 
  • - Argentina 
  • - New Zealand 

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Shipping Information

Special Handling
Other or no special handling required (sh) 
LTL (less than a truck load rating)
70.0 
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)
114850 BEARING/BUSHING O/T BALL/ROLLER I/S 
UFC (universal freight code)
58880 

Similar by Design Other bearing halfs with similar characteristics

Nothing similar to this part number was found in our inventory

21-256 / Bearing half,sleeveWhat is the formal definition of this item?

A half of a two-piece split type bearing, sleeve.