Model: 70191-8

Concave Washer

Properties:

Hole Diameter

Between 0.448 inches and 0.458 inches

Radius

Between 0.195 inches and 0.215 inches

Outside Diameter

Between 0.870 inches and 0.880 inches

Material Thickness

Between 0.235 inches and 0.255 inches

Hardness Rating

Between 40.0 rockwell c and 43.0 rockwell c

Material

Steel comp 630 or steel comp 631

Material Specification

Ams 5643 assn standard 1st material response or ams 5528 assn standard 2nd material response

Surface Treatment

Nickel and cadmium

Surface Treatment Specification

Ams 2416 assn standard single treatment response

Style Designator

Concave

NSN

5310-01-340-9084

Part Number

70191-8

Description

Washer,concave

CAGE

56876

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 recessed to form a curved or spherical contour. See also washer (1), convex. Excludes washer (1), recessed and bearing, washer, thrust.

Part 70191-8 NSN 5310-01-340-9084

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15930

FIIG:

A022B0

Concept No.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

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:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

194160

UFC:

55210

LTL:

50.0

LCL:

WCC:

713

TCC:

SHC:

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