Model: 70188-3

Convex Washer

Special Features:

Shperical radius 0.365 in. Min, 0.385 in. Max, color natural

Properties:

Hole Diameter
Between 0.198 inches and 0.208 inches
Outside Diameter
Between 0.470 inches and 0.480 inches
Material Thickness
Between 0.060 inches and 0.080 inches
Min. Tensile Strength (psi)
180000 pounds per square inch
Hardness Rating
Between 40.0 rockwell c and 43.0 rockwell c
Surface Finish
32.0 microinches outer
Material
Steel comp 630
Surface Treatment
Nickel and cadmium
Surface Treatment Specification
Ams 2416 assn standard single treatment response
Style Designator
Convex
Specification Data
81205-bacw10ca manufacturers standard
NSN
5310-01-105-0548
Part Number
70188-3
Description
Washer,convex
CAGE
56878

A washer which is round with a centrally located hole. One bearing surface is smooth, flat, and unbroken, the other bearing surface is smooth, unbroken, and is raised to form a curved or spherical contour. See also washer (1), concave. Excludes bearing, washer thrust.

Part 70188-3 NSN 5310-01-105-0548

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15931
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: 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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