Model: 407 135

Lock Washer

Properties:

Hole Diameter

Between 0.195 inches and 0.205 inches

Outside Diameter

0.381 inches

Material Thickness

0.022 inches

Material

Steel

Surface Treatment

Zinc

Style Designator

Flat internal teeth

Nondefinitive Specification/std Data

A type

Departure From Cited Document

As modified by surface finish

NSN

5310-00-274-8686

Part Number

407 135

Description

Washer,lock

CAGE

77294

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 407 135 NSN 5310-00-274-8686

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