Model: 4002-SW-A

Lock Washer

Special Features:

Heat treatment spring temper, wt 0.0606 lbs

Properties:

Hole Diameter

0.237 inches

Outside Diameter

0.443 inches

Material Thickness

0.025 inches

Part Name Assigned By Controlling Agency

Washer

Material

Steel

Surface Treatment

Zinc

Style Designator

Split helical-right hand

NSN

5310-01-646-2790

Part Number

4002-SW-A

Description

Washer,lock

CAGE

71286

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 4002-SW-A NSN 5310-01-646-2790

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: 7318210000
SITC: 69422
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Spring washers and other lock washers, iron or steel