Model: 7439286P3

Lock Washer

Properties:

Hole Diameter

Between 0.314 inches and 0.320 inches

Outside Diameter

Between 0.425 inches and 0.435 inches

Material Thickness

Between 0.020 inches and 0.022 inches

Material

Steel comp 1050

Material Specification

Qq-s-634.Cond cd federal specification single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416 type ii class 3 federal specification single treatment response

Style Designator

Flat internal teeth

NSN

5310-01-088-8956

Part Number

7439286P3

Description

Washer,lock

CAGE

99971

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 7439286P3 NSN 5310-01-088-8956

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:

194160

UFC:

55210

LTL:

50.0

LCL:

50.0

WCC:

713

TCC:

SHC:

ACC:

Equipment for Aircraft

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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