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Thrust Washer Bearing NSN 3120-00-525-7442

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 3120-00-525-7442 NSN: 3120-00-525-7442

Features and Characteristics

Cross Sectional Shape
Tapered side
Outside Diameter
Between 1.7400 inches and 1.7600 inches
Center Hole Shape
Round
Diameter
Between 1.2630 inches and 1.2650 inches
Overall Thickness
Between 0.2450 inches and 0.2550 inches
Outside Spherical Radius
Between 1.2450 inches and 1.2550 inches
Spherical Depth
Between 0.0620 inches and 0.0680 inches
Corner Shape
Square second inside corner
Hardness Rating
32.0 rockwell c and 38.0 rockwell c
Surface Finish
10.0 microinches left side
Material
Steel comp 8740
Style Designator
Round
FSC
3120 Unmounted Plain Bearings
NIIN
005257442
NSN
3120005257442

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
160637P15W
Cage Code:
00198
Status:
A
MSDS:
Part Number:
160637P015W
Cage Code:
00198
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 3120-00-525-7442
What are the manufacturers of nsn 3120005257442?
Does this nsn 3120005257442 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3120005257442
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 3120005257442 contain any precious metals?
Precious metal content is unknown.
Does nsn 3120005257442 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3120005257442?
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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