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Helical Compression Spring Seat NSN 5340-00-221-5478

Item Description

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 (1), (as modified); seat, ball socket and holder, spring. See also rotor, engine poppet valve.

NSN 5340-00-221-5478 NSN: 5340-00-221-5478

Features and Characteristics

Counterbore Diameter
0.8750 inches
Overall Height
0.5150 inches
First Step Diameter
Between 1.1000 inches and 1.1150 inches
Bore Diameter
Between 0.4420 inches and 0.4470 inches
Material Hardness Rating
Between 56.0 rockwell c and 60.0 rockwell c
Design Type
Solid
End Diameter
0.8750 inches
Distance From End To First Step
Between 0.2190 inches and 0.2340 inches
Counterbore Length
Between 0.1880 inches and 0.2030 inches
Material
Steel
Material
Steel
Surface Treatment
Phosphate
Style Designator
Seat
Surface Treatment
Phosphate
FSC
5340 Commercial Hardware
NIIN
002215478
NSN
5340002215478

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1076725
Cage Code:
10001
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5340-00-221-5478
What are the manufacturers of nsn 5340002215478?
Does this nsn 5340002215478 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5340002215478
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 (1), (as modified); seat, ball socket and holder, spring. see also rotor, engine poppet valve.
Does nsn 5340002215478 contain any precious metals?
No precious metal content.
Does nsn 5340002215478 contain any hazardous materials?
No information in HMIRS. Hazardous material unknown.
What is the ESD classification of nsn 5340002215478?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
24328
FIIG:
T319-E
App. Key:
EA
Cond. Code:
1
Status:
A

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  •   Certificate of Conformance
  •   Quality Inspected Parts
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