Model: L55LHEB220-144

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

1.438 inches

Lubrication

Soluble lubricant

Overall Height

0.895 inches

Nut Style

Double hexagon

Width Across Flats

Between 1.050 inches and 1.067 inches

Tempurature Rating

Between -65.0 degrees fahrenheit and 450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 30.0 rockwell c and 46.0 rockwell c

Thread Size

0.875 inches

Material

Steel comp 3140 or steel comp 8740

Material Specification

Aisi assn standard 1st material response or sae assn standard 2nd material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 2, cl 2 federal specification single treatment response

NSN

5310-00-181-6519

Part Number

L55LHEB220-144

Description

Nut,self-locking,extended Washer

CAGE

72962

A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part L55LHEB220-144 NSN 5310-00-181-6519

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29729

FIIG:

A021A0

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: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel