Model: 643289

Lock Washer

Properties:

Hole Diameter

Between 0.505 inches and 0.512 inches

Outside Diameter

0.625 inches

Material Thickness

0.022 inches

Material

Copper alloy

Surface Treatment

Silver

Surface Treatment Specification

649101, fscm 77630 mfr ref single treatment response

Style Designator

Flat internal teeth

NSN

5310-01-046-0419

Part Number

643289

Description

Washer,lock

CAGE

58022

A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces

Part 643289 NSN 5310-01-046-0419

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

14218

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:

194120

UFC:

95100

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7415210000
SITC: 69432
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Copper washers including spring washers not threaded