Model: ES8420-04

Spring Tension Washer

Properties:

Hole Diameter
Between 0.205 inches and 0.212 inches
Outside Diameter
Between 0.465 inches and 0.472 inches
Overall Height
Between 0.030 inches and 0.034 inches
Material Thickness
Between 0.0196 inches and 0.0198 inches
End Application
W/s: aircraft, (ac-130h, mc-130h, ec-130e, hc-130)
Hardness Rating
Between 45.0 rockwell c and 50.0 rockwell c
Material
Steel comp 631
Material Specification
Ams 5528 assn standard single material response
Surface Treatment
Passivate
Surface Treatment Specification
Qq-p-35 federal specification single treatment response
Style Designator
Spring tension
NSN
5310-01-272-9070
Part Number
ES8420-04
Description
Washer,spring Tension
CAGE
20418

A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.

Part ES8420-04 NSN 5310-01-272-9070

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15938
FIIG:
A022B0
Concept No.:
1
App. Key:
A
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:
N
PMIC:
A
ESD:
ESD:
MMAC:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:

Freight Classification

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

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Schedule B and Export
  • Schedule B: 7318210000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Spring washers and other lock washers, iron or steel

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