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Thrust Washer Bearing NSN 3120-01-031-8360

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 3120-01-031-8360 NSN: 3120-01-031-8360

Features and Characteristics

Cross Sectional Shape
Rectangular
Outside Diameter
Between 7.5250 inches and 7.5290 inches
Center Hole Shape
Round
Diameter
5.7500 inches
Overall Thickness
0.3115 inches
Spherical Depth
Between 0.0015 inches and 0.0025 inches
Corner Shape
Square second inside corner
Criticality Code Justification
Zzzw
Surface Finish
32.0 microinches right side
Special Features
One bearing surface tapered to 0.3080 in
Material
Steel comp e52100
Style Designator
Round
Departure From Cited Document
As differentiated by special quality control testing for mk 48 torpedo
FSC
3120 Unmounted Plain Bearings
NIIN
010318360
NSN
3120010318360

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
2498557
Cage Code:
10001
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 3120-01-031-8360
What are the manufacturers of nsn 3120010318360?
Does this nsn 3120010318360 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3120010318360
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 3120010318360 contain any precious metals?
No precious metal content.
Does nsn 3120010318360 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3120010318360?
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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  •   Quality Inspected Parts
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