Model: KFN530C3

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.330 inches

Counterbore Diameter

0.211 inches nut and 0.221 inches nut

Lubrication

Dry film lubricant

Overall Height

0.180 inches

Nut Style

Hexagon

Nut Counterbore Depth

0.072 inches nut and 0.082 inches nut

Width Across Flats

Between 0.213 inches and 0.221 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 39.0 rockwell c and 43.0 rockwell c

Thread Size

0.190 inches

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 8740

Material Specification

Mil-s-6049 military specification single material response

Surface Treatment

Cadmium

NSN

5310-01-105-7234

Part Number

KFN530C3

Description

Nut,self-locking,extended Washer

CAGE

15653

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 KFN530C3 NSN 5310-01-105-7234

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:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

573

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