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Thrust Washer Bearing NSN 3120-01-055-7842

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 3120-01-055-7842 NSN: 3120-01-055-7842

Features and Characteristics

Cross Sectional Shape
Rectangular
Outside Diameter
1.3750 inches
Center Hole Shape
Round
Diameter
0.7530 inches
Overall Thickness
0.1250 inches
Lubrication Material
Lubricating oil
Corner Shape
Square all corners
Material
Copper alloy
Material Specification
Mil-b-5687, type 1, comp a military specification single material response
Special Test Features
Special quality control testing
Style Designator
Round
Test Data Document
81349-mil-p-23199 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
010557842
NSN
3120010557842

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
TT-1303-2
Cage Code:
70901
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 3120-01-055-7842
What are the manufacturers of nsn 3120010557842?
Does this nsn 3120010557842 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3120010557842
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 3120010557842 contain any precious metals?
No precious metal content.
Does nsn 3120010557842 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3120010557842?
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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