Helical Compression Spring Seat

1076725

1076725
(NSN) National Stock Number
5340-00-221-5478
Federal Supply Classification
5340 Commercial Hardware
Item Name Code
24328
Schedule B Code
-
Summary

0.8750 inches nominal counterbore diameter, 0.5150 inches nominal overall height, 1.1000 inches minimum and 1.1150 inches maximum first step diameter, 0.4420 inches minimum and 0.4470 inches maximum bore diameter, 56.0 rockwell c minimum and 60.0 rockwell c maximum material hardness rating, solid design type

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

A circular item, usually having a flat or grooved flange, boss(es), and/or counterbore, designed to accommodate the end of the spring. It is used to position the spring but does not encase the spring or restrain lateral motion. It may be used in conjunction with a retainer,helical compression spring. Excludes:washer (as modified), seat,ball socket, and holder,spring. See also rotor,engine poppet valve.

INC FIIG Concept Condition
24328 T319-E - 1
Specifications
Counterbore Diameter
0.8750 inches nominal
Details The length of a straight line which passes through the center of a counterbored portion of a hole,and terminates at the circumference.
Overall Height
0.5150 inches nominal
Details The distance measured in a straight line from the bottom to the top of an item.
First Step Diameter
1.1000 inches minimum and 1.1150 inches maximum
Details None.
Bore Diameter
0.4420 inches minimum and 0.4470 inches maximum
Details The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.
Material Hardness Rating
56.0 rockwell c minimum and 60.0 rockwell c maximum
Details A numeric value that reflects the hardness of the material when used in conjunction with a hardness rating scale.
Design Type
solid
Details Indicates the design type of the item.
End Diameter
0.8750 inches nominal
Details The length of a straight line which passes through the center of the end of the item,and terminates at the circumference.
Distance From End To First Step
0.2190 inches minimum and 0.2340 inches maximum
Details None.
Counterbore Length
0.1880 inches minimum and 0.2030 inches maximum
Details None.
Material
steel
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Surface Treatment
phosphate
Details The metallic,nonmetallic,and/or chemical properties with which the item is plated,dipped,and/or coated.the treatment is designed to protect the surface(s) and cannot be wiped off.
Style Designator
seat
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
P A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
49790 - W -
RVC WCC TCC SHC
- 713 Z 9

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Manufacturer
NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER
CAGE: 10001
WASHINGTON , DC , 20376
UNITED STATES
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FAQs
Frequently asked questions for NSN 5340-00-221-5478
What is the NIIN of the NSN 5340-00-221-5478?
The National Item Identification Number (NIIN) of the NSN 5340-00-221-5478 is 00-221-5478
When the NSN 5340-00-221-5478 was assigned to the Federal Catalog?
It was assigned 55 years ago, on Mon, Jun 23, 1969
Does the NSN 5340-00-221-5478 contain any precious metals?
Does not contain precious metal
Does the NSN 5340-00-221-5478 contain any hazardous material?
No information in HMIRS

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