Model: MK4431-3K1

Plate Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Counterbore Diameter

0.194 inches nut

Overall Height

Between 0.365 inches and 0.395 inches

Mounting Hole Diameter

Between 0.098 inches and 0.103 inches

Nut Style

Plate

Nut Length

0.521 inches

Nut Height

0.228 inches

Plate Thickness

0.031 inches

Plate Width

0.437 inches

Nut Counterbore Depth

0.062 inches nut

Distance From Aperture Center To Mounting Hole Center

Between 0.245 inches and 0.250 inches

Center To Center Distance Between Mounting Holes Along Width

Between 0.217 inches and 0.221 inches

Thread Series

Unf

Thready Qty Per Inch (tpi)

Thread Size

0.190 inches

Material

Iron alloy 660 nut

Material Specification

Ams5525 assn standard single material response nut

Precious Material And Location

External surfaces silver

Surface Treatment

Silver

NSN

5310-00-968-3097

Part Number

MK4431-3K1

Description

Nut,self-locking,plate

CAGE

15653

A nut with a flanged base of varied shapes which may be plain or mounted by rivets, bolts, welding or integral prongs. An integral feature is incorporated for locking on the threads of a mating member.

Part MK4431-3K1 NSN 5310-00-968-3097

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05280

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