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Sleeve Bearing NSN 3120-00-257-8121

Item Description

A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. it must have a visible or detectable means of lubrication or be self-lubricated. the over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. see also bushing, sleeve; spacer, sleeve; and washer (as modified). excludes pin, hollow.

NSN 3120-00-257-8121 NSN: 3120-00-257-8121

Features and Characteristics

Hole Diameter
0.0520 inches first
Overall Length
Between 1.0100 inches and 1.0200 inches
Body Outside Diameter
Between 0.4995 inches and 0.5000 inches
Body Inside Diameter
Between 0.3745 inches and 0.3755 inches
Corner Shape
Square all corners
Surface Finish
32.0 microinches inside diameter surface of body
Antirotation/lubrication Type And Quantity
4 hole
Material
Steel
Style Designator
Solid, plain, no outside flanges
FSC
3120 Unmounted Plain Bearings
NIIN
002578121
NSN
3120002578121

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2-73841-1
Cage Code:
0JRC1
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8482997090
  • NAICS: 332991
  • SITC: 74699
  • Description: Parts, nesoi, for roller bearings or for combined ball/roller bearings, nesoi
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 3120-00-257-8121
What are the manufacturers of nsn 3120002578121?
Does this nsn 3120002578121 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3120002578121
A tubular shaped item with or without flange(s) designed to reduce friction and carry a kinetic load on the surface(s) parallel to the axis of the bore. it must have a visible or detectable means of lubrication or be self-lubricated. the over all length must exceed 25 percent of the outside diameter or the shortest distance between peripheral flats of the body, except for straight tubular (without flange or shoulder) items having a bearing surface(s) parallel to the axis of the bore only. includes items which are divided into two or more segments which include 180 degrees (3.141 radians) or less of the bearing periphery. see also bushing, sleeve; spacer, sleeve; and washer (as modified). excludes pin, hollow.
Does nsn 3120002578121 contain any precious metals?
Precious metal content is unknown.
Does nsn 3120002578121 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3120002578121?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
13205
FIIG:
A045A0
App. Key:
D
Cond. Code:
1
Status:
A

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