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Thrust Washer Bearing NSN 3120-00-494-6141

Item Description

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

NSN 3120-00-494-6141 NSN: 3120-00-494-6141

Features and Characteristics

Cross Sectional Shape
Shouldered
Flange Thickness
Between 0.2250 inches and 0.2300 inches
Outside Diameter
Between 3.9800 inches and 4.0200 inches
Center Hole Shape
Round
Diameter
Between 2.2760 inches and 2.2860 inches
Overall Thickness
Between 0.3490 inches and 0.3530 inches
Lubrication Material
Lubricant, manufacturers standard
Shank Outside Diameter
Between 3.0000 inches and 3.0020 inches
Corner Shape
Square third outside corner
Material
Copper alloy
Material Specification
Mil-b-5687, type 1, comp a military specification single material response
Style Designator
Round
FSC
3120 Unmounted Plain Bearings
NIIN
004946141
NSN
3120004946141

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
A23770-1
Cage Code:
13841
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8482105008
  • NAICS: 332991
  • SITC: 74610
  • Description: Thrust ball bearings
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 3120-00-494-6141
What are the manufacturers of nsn 3120004946141?
Does this nsn 3120004946141 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3120004946141
An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. it is designed for applications involving moving (kinetic) loads. except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. the thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. see also washer, flat and spacer, sleeve.
Does nsn 3120004946141 contain any precious metals?
No precious metal content.
Does nsn 3120004946141 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3120004946141?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
13211
FIIG:
A045A0
App. Key:
L
Cond. Code:
1
Status:
A

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