Model: KFN631-5

Extended Washer Self-locking Nut

Special Features:

Nut material 7075-t73 aluminum alloy: first end formed out of round to provide self-locking action

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque with nonmetallic insert

Washer Outside Diameter

0.636 inches

Overall Height

0.470 inches

Nut Style

Spline drive

Drive Point Quantity

Washer Thickness

Between 0.117 inches and 0.127 inches

End Application

A-10 thunderbolt

Tempurature Rating

250.0 degrees fahrenheit

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.3125 inches

Material

Aluminum alloy nut

Material

Plastic polytetrafluoroethylene locking insert

Material Specification

Mil-p-19468 military specification single material response locking insert

Surface Treatment

Anodize nut

Surface Treatment Specification

Mil-a-8625, type ii, cl 2 military specification single treatment response nut

NSN

5310-01-493-4427

Part Number

KFN631-5

Description

Nut,self-locking,extended Washer

CAGE

15653

A nut, circular in shape, having wrenching facilities such as flats, holes, protrusions, slots or splines in or on the periphery. It has an integral washer which extends beyond the wrenching element periphery and an integral feature is incorporated for locking on the threads of a mating member.

Part KFN631-5 NSN 5310-01-493-4427

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

36744

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:

576

TCC:

SHC:

ACC:

Construction Materials

Pricing & Availability Check

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Schedule B and Export

Schedule B: 7616995095
SITC: 69979
End Use: Finished metal shapes
NAICS: 332999
USDA: 1

Freight Class: Articles of aluminum nesoi