Thrust Washer Bearing

76253
(NSN) National Stock Number
3120-00-987-9537
Federal Supply Classification
3120 Unmounted Plain Bearings
Item Name Code
13211
Schedule B Code
8482105008
Summary

Counterbored cross-sectional shape style, 0.2000 inches minimum and 0.2100 inches maximum counterbore diameter, 0.0100 inches minimum and 0.0150 inches maximum counterbore depth, 0.0400 inches minimum and 0.4200 inches maximum outside diameter, round w/two flats center hole shape style, 0.1700 inches minimum and 0.1730 inches maximum diameter

DAC HCC DMIL RNCC
1 - - 3
RNVC SADC MSDS RNAAC
2 - - CT
Identification

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.

INC FIIG Concept Condition
13211 A045A0 - 1
Specifications
Cross-Sectional Shape Style
counterbored
Details The style designation indicating the configuration that most nearly corresponds to the cross-sectional shape of the item.
Counterbore Diameter
0.2000 inches minimum and 0.2100 inches maximum
Details The length of a straight line which passes through the center of a counterbored portion of a hole,and terminates at the circumference.
Counterbore Depth
0.0100 inches minimum and 0.0150 inches maximum
Details The depth of the process used to enlarge part of a hole.
Outside Diameter
0.0400 inches minimum and 0.4200 inches maximum
Details The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.
Center Hole Shape Style
round w/two flats
Details The style designation indicating the configuration that most nearly corresponds to the shape of the center hole.
Diameter
0.1700 inches minimum and 0.1730 inches maximum
Details The length of a straight line which passes through the center of a circular figure or body,and terminates at the circumference.
Overall Thickness
0.0890 inches minimum and 0.0910 inches maximum
Details An overall measurement of the smallest dimension of an item,in distinction from length or width.
End Item Identification
t53 mfr 2915-01-216-9779
Details The national stock number or the identification information of the end equipment for which the item is a part.
Center Hole Width Across Flats
0.1200 inches minimum and 0.1240 inches maximum
Details None.
Corner Shape
square first inside corner
Details The physical configuration of the corner.
Corner Shape
square first outside corner
Details The physical configuration of the corner.
Corner Shape
square fourth inside corner
Details The physical configuration of the corner.
Corner Shape
square second inside corner
Details The physical configuration of the corner.
Corner Shape
square second outside corner
Details The physical configuration of the corner.
Corner Shape
square third inside corner
Details The physical configuration of the corner.
Hardness Rating
53.0 rockwell c minimum overall and 60.0 rockwell c maximum overall
Details A numeric value that reflects the hardness of an item when used in conjunction with a hardness rating scale.
Surface Finish
250.0 microinches largest outside diameter
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Surface Finish
250.0 microinches left side
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Surface Finish
250.0 microinches counterbore diameter
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Surface Finish
250.0 microinches inside diameter surface of body
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Surface Finish
8.0 microinches right side
Details Designates the specific surface roughness rating,representing the arithmetic average deviation of the surface from the meanline in profile.
Material
steel overall
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
ams 5630 assn std single material response overall
Details The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.
Style Designator
round
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
76253 C0297 6 - 5 2 - ZG
76253 3M833 6 - 5 2 - ZZ
CM-76253 0EGF1 5 - 5 9 - ZZ
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N U - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
55210 - U U
RVC WCC TCC SHC
- 713 Z 9
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FAQs
Frequently asked questions for NSN 3120-00-987-9537
What is the NIIN of the NSN 3120-00-987-9537?
The National Item Identification Number (NIIN) of the NSN 3120-00-987-9537 is 00-987-9537
When the NSN 3120-00-987-9537 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Mon, Jan 1, 1962
Does the NSN 3120-00-987-9537 contain any precious metals?
Type/content is unknown
Does the NSN 3120-00-987-9537 contain any hazardous material?
No data in HMIRS

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