Model: 70186-8S

Convex Washer

Special Features:

Comp h11 rockwell c scale 52.0 min and rockwell c scale 56.0 max, recess cut 0.624 in. Min and 0.634 in. Max

Properties:

Hole Diameter
Between 0.510 inches and 0.520 inches
Outside Diameter
Between 0.870 inches and 0.880 inches
Material Thickness
Between 0.195 inches and 0.205 inches
Surface Finish
32.0 microinches top
Color
Black
Material
Steel comp 4130 or steel comp 8740 or steel comp h11
Material Specification
Mil-s-6758 military specification 1st material response or mil-s-18729 military specification 1st material response or mil-s-6049 military specification 2nd material response or ams 6487 assn standard 3rd material response
Surface Treatment
Nickel and cadmium
Surface Treatment Specification
Ams2416 assn standard 1st treatment response and ams2416 assn standard 2nd treatment response
Style Designator
Convex
Specification Data
81205-bacw10ca manufacturers standard
NSN
5310-01-047-9477
Part Number
70186-8S
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 70186-8S NSN 5310-01-047-9477

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:
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:
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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