Model: NAS428H4-3

Machine Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.313 inches and 0.406 inches

Fastener Length

Between 0.375 inches and 0.437 inches

Head Style

Crowned hexagon

Head Height

0.141 inches

Width Between Flats

Between 0.428 inches and 0.440 inches

Hole Diameter

0.046 inches

Thread Diameter

0.250 inches

Grip Length

Between 0.031 inches and 0.062 inches

Hole Quantity

Hole Type

Drilled

Features Provided

Finished head

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

125000 pounds per square inch

Hardness Rating

26.0 rockwell c and 32.0 rockwell c

Hole Configuration Style

Hexagon flats

Material

Steel comp 8740 or steel comp 8630 or steel comp 8735 or steel comp 4130 or steel comp 4037 or steel comp 4140

Material Specification

Mil-s-6049 military specification 1st material response or mil-s-6050 military specification 2nd material response or mil-s-6098 military specification 3rd material response or mil-s-6758 military specification 4th material response or ams 6300 assn standard 5th material response or mil-s-5626 military specification 6th material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, cl 2 federal standard single treatment response

Thread Series Designator

Unjf

Specification Data

80205-nas428 professional/industrial association standard

NSN

5306-00-207-4590

Part Number

NAS428H4-3

Description

Bolt,machine

CAGE

80205

An externally threaded fastener designed for insertion through holes in assembled parts and normally intended to be tightened or released by torquing a nut. the threaded and unthreaded portions are both of one nominal diameter of 0.190 inch (5 mm) or larger. The head is not designed to be held or driven with an inserted driver or by the thumb and fingers. a locking feature may be incorporated in the design of the head or threads. head dimensions and sizes of threaded and unthreaded portions shall conform to internationally recognized fastener standards. for items having a grip length portion machined to a tolerance of 0.0015 inch (0.038 mm) or less, bolt, shear. See also screw, cap, hexagon head and screw, machine.

Part NAS428H4-3 NSN 5306-00-207-4590

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01847

FIIG:

A003B0

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: 7318152000
SITC: 69421
End Use: Iron and steel products, other
NAICS: 332722
USDA: 1

Freight Class: Bolts and bolts and their nuts or washers exported in the same shipment