Model: ST3M426C7M

Assembled Washe Self-locking Nut

Properties:

Thread Class

Thread Pitch Diameters

+0.4050/+0.4091 inches

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Washer Outside Diameter

0.760 inches

Counterbore Diameter

0.475 inches nut and 0.484 inches nut

Lubrication

Dry film lubricant

Overall Height

Between 0.383 inches and 0.403 inches

Nut Style

Plain dished

Nut Height

Between 0.326 inches and 0.336 inches

Nut Counterbore Depth

0.067 inches nut and 0.077 inches nut

Width Across Flats

Between 0.492 inches and 0.502 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Thread Size

0.438 inches

Material

Iron alloy 660

Material Specification

Ams5735 assn standard single material response or ams5737 assn standard single material response

Specification Data

76301-st301-st3-426 manufacturers standard

NSN

5310-01-007-4878

Part Number

ST3M426C7M

Description

Nut,self-locking,assembled Washe

CAGE

76301

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 ST3M426C7M NSN 5310-01-007-4878

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

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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