Model: 181042A1

Extended Washer Self-locking Nut

Special Features:

Model new fam; locknut, special flanged

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

Between 73.0 millimeters and 77.0 millimeters

Overall Height

Between 17.5 millimeters and 19.0 millimeters

Nut Style

Hexagon

Washer Thickness

Between 3.0 millimeters and 5.0 millimeters

End Application

2420-66-148-7692, hmee (high mobility engineer excavator)

Width Across Flats

Between 55.25 millimeters and 57.15 millimeters

Thread Series

Thready Qty Per Inch (tpi)

Hardness Rating

Between 26.0 rockwell c and 38.0 rockwell c

Thread Size

1.750 inches

Hole Configuration Style

Configuration a

Material

Steel comp 1045

Surface Treatment

Zinc

NSN

5310-01-507-5854

Part Number

181042A1

Description

Nut,self-locking,extended Washer

CAGE

10988

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 181042A1 NSN 5310-01-507-5854

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:

0.5000lbs

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