Model: 20-278

Helical Compression Spring Seat

Special Features:

Not casehardened

Properties:

Overall Height
Between 0.4590 inches and 0.4790 inches
First Step Diameter
Between 1.7090 inches and 1.7290 inches
Bore Diameter
Between 0.5910 inches and 0.5950 inches
Ridge Height
Between 0.0840 inches and 0.1040 inches
Design Type
Solid
Bore Taper In Deg
7.0
Distance From Center To Beginning Of Ridge
Between 0.7560 inches and 0.7760 inches
Material
Steel
Material
Steel
NSN
5340-00-345-3393
Part Number
20-278
Description
Seat,helical Compression Spring
CAGE
71995

Part 20-278 NSN 5340-00-345-3393

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
24328
FIIG:
T319-E
Concept No.:
App. Key:
EA
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194160
UFC:
55210
LTL:
50.0
LCL:
50.0
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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