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Spherical Plain Bearing NSN 3120-01-221-3078

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 3120-01-221-3078 NSN: 3120-01-221-3078

Features and Characteristics

Overall Length
Between 0.3410 inches and 0.3430 inches
Body Inside Diameter
Between 0.2495 inches and 0.2500 inches
Lubrication Material
Lubricant, dry film
Spherical Body Diameter
Between 0.4997 inches and 0.5000 inches
Corner Shape
Chamfered all corners
Hardness Rating
37.0 rockwell c
Surface Finish
63.0 microinches right end surface
Special Features
Lubricant e/m 967 per ps010, fscm 57606
Material
Cobalt comp 6
Material Specification
Ams 5387 assn standard single material response
Style Designator
Solid
Test Data Document
81349-mil-i-6866 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 57606-ps012 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
012213078
NSN
3120012213078

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
P31721
Cage Code:
57606
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 3120-01-221-3078
What are the manufacturers of nsn 3120012213078?
Does this nsn 3120012213078 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3120012213078
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 3120012213078 contain any precious metals?
No precious metal content.
Does nsn 3120012213078 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3120012213078?
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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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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