Model: KFN644-7

Clinch Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Pilot Diameter

0.474 inches

Nut Diameter

Between 0.855 inches and 0.865 inches

Nut Height

0.515 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 39.0 rockwell c and 43.0 rockwell c

Thread Size

0.437 inches

Material

Steel

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416 type iiclass 3 federal specification single treatment response

NSN

5310-01-497-7685

Part Number

KFN644-7

Description

Nut,self-locking,clinch

CAGE

15653

A nut having a sleeve portion on its under side, which can be crimped or clinched to hold the item in place when inserted in a hole. An integral feature is incorporated for locking.

Part KFN644-7 NSN 5310-01-497-7685

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15892

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