Model: ST3M738-4

Barrel Self-locking Nut

Special Features:

Barrel rockwell c scale 38 min and @rockwell c scale 42 max

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Lubrication

Dry film lubricant

Nut Style

Floating self-locking barrel

Nut Diameter

Between 0.525 inches and 0.528 inches

Nut Length

0.625 inches

Barrel Height

0.320 inches

Nut Height

0.406 inches

Tempurature Rating

500.0 degrees fahrenheit

Thread Series

Unjf

Features Provided

Floating nut

Thready Qty Per Inch (tpi)

Hardness Rating

Between 38.0 rockwell c and 40.0 rockwell c

Thread Size

0.250 inches

Material

Steel comp 4340 locking insert

Material Specification

Aisi assn standard single material response locking insert

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2 federal specification single treatment response

NSN

5310-01-047-9467

Part Number

ST3M738-4

Description

Nut,self-locking,barrel

CAGE

76301

A nut of cylindrical or partly cylindrical cross-section with integral threads perpendicular to the axial centerline. Ends may be flat or flanged. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, round.

Part ST3M738-4 NSN 5310-01-047-9467

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

15891

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