Model: M163861

Concave Washer

Properties:

Hole Diameter

20.4 millimeters

Outside Diameter

40.0 millimeters

Recess Depth

2.5 millimeters

Material Thickness

3.45 millimeters

End Application

1740-01-632-9476

Color

Black

Material

Steel

Surface Treatment

Phosphate

Style Designator

Concave

NSN

5310-01-650-9033

Part Number

M163861

Description

Washer,concave

CAGE

0XWZ3

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 M163861 NSN 5310-01-650-9033

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:

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: 7616108000
SITC: 69440
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Cotters, cotter-pins, washers and similar articles, of aluminum