Model: 343771

Machine Bolt

Properties:

Thread Direction

Right-hand

Thread Length

Between 0.366 inches and 0.386 inches

Fastener Length

Between 0.428 inches and 0.448 inches

Head Style

Double hexagon extended washer

Head Height

Between 0.250 inches and 0.270 inches

Width Between Flats

Between 0.243 inches and 0.251 inches

Extended Washer Diameter

Between 0.365 inches and 0.385 inches

Extended Washer Thickness

Between 0.040 inches and 0.050 inches

Hole Diameter

0.047 inches

Thread Diameter

0.190 inches

Hole Quantity

Hole Type

Drilled

Features Provided

Finished head

Nonstandard Thread Pitch Diameter

+0.1644/+0.1664 inches

Thready Qty Per Inch (tpi)

Hardness Rating

24.0 rockwell c and 36.0 rockwell c

Minimum Yield Strength

85000 pounds per square inch

Hole Configuration Style

Double hexagon longitudinal hole

Part Name Assigned By Controlling Agency

Navy special project

Material

Iron alloy 660

Material Specification

Ams 5732 assn standard single material response

Precious Material

Silver

Surface Treatment

Silver

Surface Treatment Specification

Ams 2410 assn standard single treatment response

Thread Series Designator

Unf

NSN

5306-00-809-7479

Part Number

343771

Description

Bolt,machine

CAGE

77445

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 343771 NSN 5306-00-809-7479

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:

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