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Helical Compression Spring Seat NSN 5340-01-158-1889

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 5340-01-158-1889 NSN: 5340-01-158-1889

Features and Characteristics

Countersink Angle In Deg
45.0
Chamfer Angle In Deg
15.0
Counterbore Diameter
0.4700 inches
Overall Height
Between 0.3740 inches and 0.3750 inches
First Step Diameter
Between 0.7100 inches and 0.7200 inches
Bore Diameter
Between 0.2500 inches and 0.2600 inches
Material Hardness Rating
Between 49.0 rockwell c and 53.0 rockwell c
Design Type
Solid
Countersink Diameter
0.3120 inches
End Diameter
0.4190 inches
Distance From End To First Step
0.2850 inches
Counterbore Length
Between 0.0440 inches and 0.0460 inches
Special Features
Not casehardened; matl-steel qq-s-763, cl 420
Material
Steel
Material
Steel
Surface Treatment
Passivate
Surface Treatment Specification
Ps13001, mcdonnell douglas corporation mfr ref single treatment response
Style Designator
Seat
Surface Treatment
Passivated, ps13001, mcdonnell douglas corp
FSC
5340 Commercial Hardware
NIIN
011581889
NSN
5340011581889

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3003189-3
Cage Code:
82106
Status:
A
MSDS:
Part Number:
10112816
Cage Code:
A486G
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5340-01-158-1889
What are the manufacturers of nsn 5340011581889?
Does this nsn 5340011581889 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5340011581889
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 5340011581889 contain any precious metals?
No precious metal content.
Does nsn 5340011581889 contain any hazardous materials?
No information in HMIRS. Hazardous material unknown.
What is the ESD classification of nsn 5340011581889?
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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