Model: MK7231-04

Clinch Self-locking Nut

Special Features:

Upper threaded portion deformed ellipitically to produce self locking action also optional six or ten lands for tightening

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Pilot Diameter

0.155 inches

Pilot Length

0.035 inches

Counterbore Diameter

0.112 inches nut

Nut Style

Clinch

Nut Diameter

0.219 inches

Nut Height

0.195 inches

Nut Counterbore Depth

0.035 inches nut

Tempurature Rating

900.0 degrees fahrenheit

Thread Series

Unjc

Thready Qty Per Inch (tpi)

Thread Size

0.112 inches

Part Name Assigned By Controlling Agency

Navy special project

Material

Iron alloy 660

Precious Material

Silver

Surface Treatment

Silver

NSN

5310-00-016-0777

Part Number

MK7231-04

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 MK7231-04 NSN 5310-00-016-0777

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

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: 7318160000
SITC: 69421
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Nuts of iron or steel