Model: 311999-5

Machine Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.220 inches

Fastener Length

1.875 inches

Head Style

Hexagon

Head Height

0.094 inches

Width Between Flats

0.500 inches

Shank Unthreaded Hole Diameter

0.074 inches first hole and 0.079 inches first hole

Shank Unthreaded Hole Diameter

0.074 inches and 0.079 inches first hole

Thread Diameter

0.312 inches

Grip Length

1.655 inches

Features Provided

Finished head

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

180000 pounds per square inch

Distance From Head Largest Bearing Surface To Shank Hole Center

1.795 inches first hole

Surface Finish

100.0 microinches

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 8630

Material Specification

Mil-s-6050 military specification single material response

Surface Treatment

Cadmium

Thread Series Designator

Unf

NSN

5306-00-286-7503

Part Number

311999-5

Description

Bolt,machine

CAGE

98897

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 311999-5 NSN 5306-00-286-7503

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:

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