Model: LH13374-4LH

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Left-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.420 inches

Lubrication

Dry film lubricant

Overall Height

Between 0.204 inches and 0.219 inches

Nut Style

Hexagon

Washer Thickness

0.090 inches

Width Across Flats

Between 0.304 inches and 0.316 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

49.0 rockwell c

Thread Size

0.250 inches

Material

Steel comp 4340 and steel comp 8740

Material Specification

Ams 6415 assn standard 1st material response or ams 6322 assn standard 2nd material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, cl2 federal specification single treatment response

NSN

5310-01-377-0763

Part Number

LH13374-4LH

Description

Nut,self-locking,extended Washer

CAGE

72962

A nut having 6 flat sides and an integral washer which extends beyond the flats or periphery. An integral feature is incorporated for locking on the threads of a mating member.

Part LH13374-4LH NSN 5310-01-377-0763

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29730

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:

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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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