Model: 20500-20

Lock Washer

Special Features:

Dyed light yellow

Properties:

Hole Diameter

Between 0.194 inches and 0.205 inches

Outside Diameter

0.337 inches

Material Thickness

0.047 inches

Material

Copper alloy 510

Material Specification

Qq-b-746 federal specification single material response

Surface Treatment

Cadmium

Style Designator

Split helical-right hand

NSN

5310-00-167-0663

Part Number

20500-20

Description

Washer,lock

CAGE

64547

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 20500-20 NSN 5310-00-167-0663

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:

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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