Model: KFN542-08

Assembled Washe Self-locking Nut

Special Features:

Washer rockwell c scale 40.0 min and rockwell c scale 45.0 max

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.340 inches

Counterbore Diameter

0.197 inches nut and 0.202 inches nut

Overall Height

0.240 inches

Nut Style

Flat with turned up edge

Nut Counterbore Depth

0.087 inches nut and 0.097 inches nut

Width Across Flats

Between 0.212 inches and 0.220 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjc

Thready Qty Per Inch (tpi)

Hardness Rating

Between 39.0 rockwell c and 43.0 rockwell c

Thread Size

0.164 inches

Material

Steel comp 8740 or steel comp 4340 or steel comp 4140

Material Specification

Mil-s-6049 military specification 1st material response or mil-s-5000 military specification 2nd material response or mil-s-5626 military specification 3rd material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, ty2 cl2 military specification single treatment response

NSN

5310-01-119-6793

Part Number

KFN542-08

Description

Nut,self-locking,assembled Washe

CAGE

17446

A nut on which has been assembled a nonremovable washer. An integral feature is incorporated for locking on the threads of a mating member.

Part KFN542-08 NSN 5310-01-119-6793

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

29736

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