Linear-Rotary Motion Roller

176927

176927
(NSN) National Stock Number
3120-00-193-1278
Federal Supply Classification
3120 Unmounted Plain Bearings
Item Name Code
28215
Schedule B Code
8482997090
Summary

Not casehardened casehardening indicator, 0.250 inches nominal outside diameter, 0.350 inches nominal face width, 0.1873 inches minimum and 0.1883 inches maximum bore inside diameter, bcxd criticality code justification, steel comp 4130 material

DAC HCC DMIL RNCC
5 - - 3
RNVC SADC MSDS RNAAC
2 - - SB
Identification

A cylindrical body having a centrally located hole to accommodate a pin or shaft for attachment to a push rod guide, yoke, rocker arm, turntable, or rail. The item provides a rolling contact with the face of a valve stem, or the lobes of a cam ring or camshaft on engines, fuel injection pumps, latches, turntables, parallel bearing surfaces requiring a roller support, and the like. Excludes:bearing, roller, cylindrical; roller, electrical switch; and friction bearings. See also cam follower, needle bearing.

INC FIIG Concept Condition
28215 T267-K - 1
Specifications
Casehardening Indicator
not casehardened
Details Indicates whether or not a ferrous alloy object has been subjected to a process whereby the outer portion is made substantially harder than the inner portion or core.
Outside Diameter
0.250 inches nominal
Details The length of a straight line which passes through the center of a circular figure or body,and terminates at the outside circumference.
Face Width
0.350 inches nominal
Details A measurement taken at right angles to the length of the face,in distinction from thickness.
Bore Inside Diameter
0.1873 inches minimum and 0.1883 inches maximum
Details The length of a straight line which passes through the center of a circular bore,and terminates at the inside circumference.
Criticality Code Justification
bcxd
Details The master requirement codes of those requirements which are technically critical by reason of tolerance,fit,performance,or other characteristics which affect identification of the item.
Material
steel comp 4130
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material Document And Classification
mil-t-6736 mil spec single material response
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
plain
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
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
- - - -
RVC WCC TCC SHC
- - - -

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Manufacturer
LOCKHEED MARTIN CORP DIV LOCKHEED MARTIN AERONAUTICS COMPANY
CAGE: 98897
MARIETTA , GA , 30063-0001
UNITED STATES
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FAQs
Frequently asked questions for NSN 3120-00-193-1278
What is the NIIN of the NSN 3120-00-193-1278?
The National Item Identification Number (NIIN) of the NSN 3120-00-193-1278 is 00-193-1278
When the NSN 3120-00-193-1278 was assigned to the Federal Catalog?
It was assigned 51 years ago, on Sat, Feb 24, 1973
Does the NSN 3120-00-193-1278 contain any precious metals?
Type/content is unknown
Does the NSN 3120-00-193-1278 contain any hazardous material?
No data in HMIRS

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