Model: 752 520

Hexagon Plain Nut

Properties:

Thread Class

Thread Direction

Right-hand

Nut Style

Hexagon

Nut Height

0.219 inches

Drilled Hole Diameter

Between 0.045 inches and 0.050 inches

Hole Type And Quantity

3 drilled

Width Across Flats

Between 0.490 inches and 0.502 inches

Thread Series

Unjf

Thready Qty Per Inch (tpi)

Hardness Rating

Between 34.0 rockwell c and 38.0 rockwell c

Thread Size

0.312 inches

Hole Configuration Style

Configuration b

Countersink Angle

110.0 degrees both ends

Bearing Surface Type

Chamfered

Bearing Surface Finish

125.0 microinches

Material

Steel comp 4130

Material Specification

Mil-s-6758, cond f-4 military specification single material response

Surface Treatment

Cadmium and chromate

NSN

5310-00-208-3755

Part Number

752 520

Description

Nut,plain,hexagon

CAGE

77294

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

Part 752 520 NSN 5310-00-208-3755

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01857

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