Model: 642A50728-1

Barrel Self-locking Nut

Properties:

Thread Class

Thread Direction

Right-hand

Locking Feature

Prevailing torque all metal design

Counterbore Diameter

0.344 inches nut and 0.354 inches nut

Lubrication

Dry film lubricant

Nut Style

Floating self-locking barrel

Nut Diameter

Between 0.587 inches and 0.590 inches

Nut Length

Between 0.678 inches and 0.698 inches

Barrel Height

Between 0.350 inches and 0.360 inches

Nut Height

0.468 inches

Nut Counterbore Depth

0.120 inches nut and 0.130 inches nut

Tempurature Rating

450.0 degrees fahrenheit

Thread Series

Unjf

Features Provided

Floating nut

Thready Qty Per Inch (tpi)

Hardness Rating

Between 36.0 rockwell c and 43.0 rockwell c

Thread Size

0.312 inches

Material

Steel comp 4140 nut or steel comp 8740 nut or steel comp e4340 nut

Material Specification

Mil-s-5626 military specification 1st material response nut or mil-s-6049 military specification 2nd material response nut or mil-s-5000 military specification 3rd material response nut

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416 federal specification single treatment response

Specification Data

80205-nas577 professional/industrial association standard

NSN

5310-00-839-2017

Part Number

642A50728-1

Description

Nut,self-locking,barrel

CAGE

30003

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 642A50728-1 NSN 5310-00-839-2017

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