Model: 1914579

Lock Washer

Properties:

Hole Diameter

Between 0.221 inches and 0.232 inches

Outside Diameter

0.427 inches

Material Thickness

0.047 inches

Hardness Rating

Between 45.0 rockwell c and 53.0 rockwell c

Material

Steel comp 1060 and steel comp 1561 or steel comp 1064 or steel comp 1065 or steel comp 1566 or steel comp 1069 or steel comp 1070 or steel comp 1572 or steel comp 1074 or steel comp 1075 or steel comp 1078 or steel comp 1080

Material Specification

66 federal standard all material responses

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification single treatment response

Style Designator

Split helical-right hand

Nondefinitive Specification/std Data

A class and 1 style

Departure From Cited Designator

As modified by dim.

NSN

5310-00-550-3722

Part Number

1914579

Description

Washer,lock

CAGE

1LW55

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 1914579 NSN 5310-00-550-3722

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:

0.1000lbs

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