Model: 28D14

Lock Washer

Properties:

Hole Diameter

0.266 inches

Outside Diameter

0.454 inches

Material Thickness

0.049 inches

Material

Steel comp 1060

Material Specification

Ams 7240 national specification single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416 type 1 federal specification single treatment response

Style Designator

Split helical-right hand

NSN

5310-00-167-4422

Part Number

28D14

Description

Washer,lock

CAGE

0AHP5

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 28D14 NSN 5310-00-167-4422

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