Model: KFN542-12

Assembled Washe Self-locking Nut

Special Features:

Rockwell c scale 40 min and rockwell c scale 45 max washer

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

1.310 inches

Counterbore Diameter

0.840 inches nut and 0.845 inches nut

Overall Height

0.670 inches

Nut Style

Flat with turned up edge

Nut Counterbore Depth

0.115 inches nut and 0.125 inches nut

Width Across Flats

Between 0.865 inches and 0.877 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 39.0 rockwell c and 48.0 rockwell c

Thread Size

0.750 inches

Material

Steel comp 4140 nut or steel comp 4340 nut or steel comp 8740 nut

Material

Steel washer

Material Specification

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

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, cl 2 federal specification all treatment responses

NSN

5310-01-114-2905

Part Number

KFN542-12

Description

Nut,self-locking,assembled Washe

CAGE

75237

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 KFN542-12 NSN 5310-01-114-2905

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