Model: KFN530C4

Extended Washer Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.425 inches

Counterbore Diameter

0.277 inches nut and 0.287 inches nut

Lubrication

Dry film lubricant

Overall Height

0.230 inches

Nut Style

Hexagon

Nut Counterbore Depth

0.072 inches nut and 0.082 inches nut

Width Across Flats

Between 0.274 inches and 0.284 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 39.0 rockwell c and 43.0 rockwell c

Thread Size

0.250 inches

Material

Steel comp 8740

Material Specification

Mil-s-6049 military specification single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1, cl 3 federal specification single treatment response

NSN

5310-00-326-4918

Part Number

KFN530C4

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 KFN530C4 NSN 5310-00-326-4918

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:

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