Model: KFN542-3

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

0.363 inches

Counterbore Diameter

0.223 inches nut and 0.228 inches nut

Overall Height

0.243 inches

Nut Style

Flat with turned up edge

Nut Counterbore Depth

0.097 inches nut

Width Across Flats

Between 0.243 inches and 0.251 inches

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.190 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, cl2 federal specification all treatment responses

NSN

5310-01-057-0889

Part Number

KFN542-3

Description

Nut,self-locking,assembled Washe

CAGE

15563

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 KFN542-3 NSN 5310-01-057-0889

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

End Items End applications NSN 5310-01-057-0889 is a component of

Rail Restraint Asse
010832537
Restraint Rail Asse
010829727
Radar Set Subassembly
013945346
Restraint Rail Asse
010832539
Aircraft Structural Component Support
013842457
Aircraft Trailing Edge
013681289
Aircraft Access Door
013679351
Aircraft Trailing Edge
014114826
Aircraft Structural Component Support
013981464
Aircraft Stiffener Rib
014558516
Aircraft Stiffener Rib
014558515
Aircraft Structural Panel
014550878
Aircraft Structural Panel
014550471
Aircraft Structural Panel
014550470
Test Adapter
012594700

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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