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Spherical Plain Bearing NSN 3120-00-840-2729

Item Description

A detachable part in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. It may be divided into two or more segments of 180 degrees (3.141 radians) or less. The item has a cylindrical bore and is basically spherical in its exterior design to allow for shaft misalignment. Excludes bearing, plain, self-aligning.

NSN 3120-00-840-2729 NSN: 3120-00-840-2729

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Features and Characteristics

Overall Length
Between 1.3070 inches and 1.3120 inches
Body Inside Diameter
Between 1.4995 inches and 1.5000 inches
Spherical Body Diameter
Between 2.1540 inches and 2.1560 inches
Corner Shape
Square inside left corner
Hardness Rating
60.0 rockwell c and 63.0 rockwell c
Surface Finish
8.0 microinches spherical surface
Material
Steel comp e52100
Material Specification
Mil-s-7420 military specification single material response
Surface Treatment
Chromium spherical surface
Surface Treatment Specification
Qq-c-320, cl 2 federal specification single treatment response right end surface
Style Designator
Solid
Test Data Document
97499-4075 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.). And 97499-4092 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
FSC
3120 Unmounted Plain Bearings
NIIN
008402729
NSN
3120008402729

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
204-076-168-1
Cage Code:
97499
Status:
A
MSDS:
Part Number:
204-076-168-001
Cage Code:
97499
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8482300040
  • NAICS: 332991
  • SITC: 74630
  • Description: Spherical roller bearings, single row
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 3120-00-840-2729
What are the manufacturers of nsn 3120008402729?
Does this nsn 3120008402729 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3120008402729
A detachable part in or on which a journal, gudgeon, pivot, or the like moves. it is used to carry a load and to reduce sliding friction. it does not employ rolling elements. it may be divided into two or more segments of 180 degrees (3.141 radians) or less. the item has a cylindrical bore and is basically spherical in its exterior design to allow for shaft misalignment. excludes bearing, plain, self-aligning.
Does nsn 3120008402729 contain any precious metals?
Precious metal content is unknown.
Does nsn 3120008402729 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3120008402729?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
13204
FIIG:
A045A0
App. Key:
C
Cond. Code:
1
Status:
A

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