Model: 2-220

Lock Washer

Properties:

Hole Diameter

Between 0.137 inches and 0.145 inches

Outside Diameter

Between 0.285 inches and 0.295 inches

Overall Height

Between 0.052 inches and 0.072 inches

Material Thickness

Between 0.015 inches and 0.025 inches

Hardness Rating

Between 45.0 rockwell c and 50.0 rockwell c

Material

Steel comp 1060 or steel comp 1064 or steel comp 1065

Material Specification

Sae assn standard single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Ams 2400 assn standard single treatment response

Style Designator

Split helical-right hand

NSN

5310-00-275-0575

Part Number

2-220

Description

Washer,lock

CAGE

77820

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 2-220 NSN 5310-00-275-0575

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

Item Weight:

Item Dim:

OPI

SPI No.

SPI Rev.

SPC Mkg.

LVL A

LVL B

OPI:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

194160

UFC:

55210

LTL:

50.0

LCL:

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