Model: 6661522-18

Slotted Washer

Properties:

Hole Diameter
Between 0.253 inches and 0.258 inches
Outside Diameter
Between 0.495 inches and 0.498 inches
Material Thickness
Between 0.0785 inches and 0.0789 inches
Hardness Rating
Between 79.4 rockwell superficial 15-n and 83.5 rockwell superficial 15-n
Surface Finish
32.0 microinches bottom
Surface Finish
32.0 microinches top
Heat Treatment
Annealed
Material
Steel comp 410
Material Specification
Qq-s-763 federal specification single material response
Surface Treatment
Passivate
Surface Treatment Specification
Pr100 fscm 09523 mfr ref single treatment response
Style Designator
Slotted
NSN
5310-00-113-6681
Part Number
6661522-18
Description
Washer,slotted
CAGE
09523

A washer, round in shape, and having a centrally located hole. Its two flat parallel bearing surfaces are divided or cut along the radius, leaving a cleft, fissure, or cutaway portion across the rim which extends from the outer circumference to the washer hole and is always as large as, or larger than the diameter of the hole.

Part 6661522-18 NSN 5310-00-113-6681

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15936
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:
194160
UFC:
55210
LTL:
50.0
LCL:
--
WCC:
576
TCC:
Z
SHC:
Z
ACC:
Construction Materials

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Schedule B and Export
  • Schedule B: 7318220000
  • SITC: 69422
  • End Use: Finished metal shapes
  • NAICS: 332722
  • USDA: 1

Freight Class: Washers other than lock washers, iron or steel

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