Model: 03A187-18L

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

1.745 inches

Lubrication

Dry film lubricant

Overall Height

Between 0.553 inches and 0.573 inches

Nut Style

Slotted hexagon

Washer Thickness

Between 0.080 inches and 0.100 inches

Width Across Flats

Between 1.239 inches and 1.257 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

1.125 inches

Material

Iron alloy 660

Material Specification

Ams 5735 assn standard single material response

Surface Treatment

Passivate first end

Surface Treatment Specification

Qq-p-35 federal specification single treatment response

NSN

5310-01-351-9200

Part Number

03A187-18L

Description

Nut,self-locking,extended Washer

CAGE

1W025

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 03A187-18L NSN 5310-01-351-9200

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:

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:

738

TCC:

SHC:

ACC:

Instruments/Radio

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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