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Helical Compression Spring Seat NSN 5340-01-120-4902

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 5340-01-120-4902 NSN: 5340-01-120-4902

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Features and Characteristics

Countersink Angle In Deg
45.0
Chamfer Angle In Deg
45.0
Overall Height
0.2500 inches
First Step Diameter
Between 0.5370 inches and 0.5470 inches
Bore Diameter
Between 0.2250 inches and 0.2300 inches
Design Type
Solid
Countersink Diameter
Between 0.2550 inches and 0.2600 inches
End Diameter
Between 0.3030 inches and 0.3080 inches
Distance From End To First Step
0.2120 inches
Special Features
Not casehardened
Material
Steel, qq-s-763, class 304, cond a
Material
Steel comp 304
Material Specification
Qq-s-763, class 304, cond a federal specification single material response
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 Application Data
Cylinder assembly, actuating linear, aircraft
FSC
5340 Commercial Hardware
NIIN
011204902
NSN
5340011204902

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
1B48142-1
Cage Code:
81873
Status:
A
MSDS:
Part Number:
10112397
Cage Code:
A486G
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5340-01-120-4902
What are the manufacturers of nsn 5340011204902?
Does this nsn 5340011204902 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5340011204902
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 5340011204902 contain any precious metals?
No precious metal content.
Does nsn 5340011204902 contain any hazardous materials?
No information in HMIRS. Hazardous material unknown.
What is the ESD classification of nsn 5340011204902?
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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