Model: WD20751

Spring Tension Washer

Properties:

Hole Diameter
Between 0.260 inches and 0.270 inches
Outside Diameter
Between 0.490 inches and 0.510 inches
Overall Height
Between 0.045 inches and 0.065 inches
Material Thickness
Between 0.009 inches and 0.011 inches
Hardness Rating
35.0 rockwell c
Part Name Assigned By Controlling Agency
Navy special project
Material
Copper alloy
NSN
5310-00-451-0045
Part Number
WD20751
Description
Washer,spring Tension
CAGE
78189

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

Part WD20751 NSN 5310-00-451-0045

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:
U
ESD:
ESD:
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
194120
UFC:
95100
LTL:
RATING VARIABLE
LCL:
--
WCC:
713
TCC:
Z
SHC:
9
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7415210000
  • SITC: 69432
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Copper washers including spring washers not threaded

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