Model: 503A2-8

Lock Washer

Properties:

Hole Diameter

Between 0.256 inches and 0.267 inches

Outside Diameter

Between 0.466 inches and 0.478 inches

Material Thickness

Between 0.020 inches and 0.030 inches

Material

Steel comp 410

Material Specification

Qq-s-763, class 410, cond a federal specification single material response

Surface Treatment

Passivate

Style Designator

Flat internal teeth

NSN

5310-00-576-5492

Part Number

503A2-8

Description

Washer,lock

CAGE

94033

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 503A2-8 NSN 5310-00-576-5492

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:

Construction Materials

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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