Model: 421-4-25224-000

Convex Washer

Properties:

Hole Diameter

7.2 millimeters

Outside Diameter

12.8 millimeters

Material Thickness

Between 0.170 millimeters and 0.220 millimeters

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel

Surface Treatment

Phosphate

Style Designator

Convex

NSN

5310-01-362-2116

Part Number

421-4-25224-000

Description

Washer,convex

CAGE

99207

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 421-4-25224-000 NSN 5310-01-362-2116

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15931

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: 7318220000
SITC: 69422
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Washers other than lock washers, iron or steel