Model: 621-21

Spring Tension Washer

Properties:

Hole Diameter
Between 0.1235 inches and 0.1335 inches
Outside Diameter
Between 0.448 inches and 0.453 inches
Overall Height
Between 0.045 inches and 0.055 inches
Material Thickness
Between 0.0149 inches and 0.0169 inches
Hardness Rating
Between 39.0 rockwell c and 43.0 rockwell c
Material
Copper alloy 170 or copper alloy 172
Material Specification
Qq-c-533 federal specification single material response
NSN
5310-00-272-5663
Part Number
621-21
Description
Washer,spring Tension
CAGE
89944

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

Part 621-21 NSN 5310-00-272-5663

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
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:
194120
UFC:
95100
LTL:
RATING VARIABLE
LCL:
--
WCC:
573
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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