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Helical Compression Spring Seat NSN 5340-01-212-6556

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 5340-01-212-6556 NSN: 5340-01-212-6556

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Features and Characteristics

Overall Height
0.6250 inches
First Step Diameter
Between 0.2850 inches and 0.2900 inches
First Step Length
0.0800 inches
Second Step Diameter
Between 0.5550 inches and 0.5600 inches
Second Step Length
0.0700 inches
Third Step Diameter
0.7500 inches
Bore Diameter
Between 0.2010 inches and 0.2030 inches
End Application
Flap cont roller, hyd
Material Hardness Rating
Between 49.0 rockwell c and 53.0 rockwell c
Design Type
Solid
End Diameter
Between 0.2750 inches and 0.2800 inches
Distance From End To First Step
0.4150 inches
Material
Steel, qq-s-763
Material
Steel comp 202 or steel comp 302 or steel comp 303 or steel comp 303se or steel comp 304 or steel comp 304l or steel comp 305 or steel comp 309 or steel comp 310 or steel comp 316 or steel comp 316l or steel comp 317 or steel comp 321 or steel comp 322 or steel comp 324 or steel comp 347 or steel comp 633 or steel comp 634 or steel comp 403 or steel comp 405 or steel comp 410 or steel comp 414 or steel comp 416 or steel comp 416se or steel comp 420 or steel comp 430 or steel comp 430f or steel comp 430fse or steel comp 431 or steel comp 440a or steel comp 440b or steel comp 440c or steel comp 440f or steel comp 440fse or steel comp 446
Material Specification
Qq-s-763 federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Ps13001, mcdonnell douglas corporation mfr ref single treatment response
Surface Treatment
Passivated, ps13001, mcdonnell douglas corp
FSC
5340 Commercial Hardware
NIIN
012126556
NSN
5340012126556

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
3837102-1
Cage Code:
93835
Status:
A
MSDS:
Part Number:
3837084-1
Cage Code:
93835
Status:
A
MSDS:

Q & A

Frequently asked questions for NSN 5340-01-212-6556
What are the manufacturers of nsn 5340012126556?
Does this nsn 5340012126556 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 5340012126556
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 5340012126556 contain any precious metals?
No precious metal content.
Does nsn 5340012126556 contain any hazardous materials?
No information in HMIRS. Hazardous material unknown.
What is the ESD classification of nsn 5340012126556?
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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