Model: 229-004321

Concave Washer

Properties:

Hole Diameter

Between 0.255 inches and 0.262 inches

Radius

Between 2.710 inches and 2.720 inches

Outside Diameter

Between 0.710 inches and 0.730 inches

Recess Depth

0.040 inches

Material Thickness

0.120 inches

Surface Finish

32.0 microinches top

Part Name Assigned By Controlling Agency

Navy special project

Material

Stainless steel

Material Specification

Mil-s-18732 military specification single material response

Surface Treatment

Oxide film

Surface Treatment Specification

Mil-c-13924, class 2 military specification single treatment response

Style Designator

Concave

NSN

5310-01-052-0039

Part Number

229-004321

Description

Washer,concave

CAGE

33827

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 229-004321 NSN 5310-01-052-0039

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

576

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