Model: MILB857

Machine Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.563 inches

Fastener Length

0.750 inches

Head Style

Hexagon

Head Height

0.281 inches

Width Between Flats

Between 0.544 inches and 0.562 inches

Hole Diameter

0.062 inches

Thread Diameter

0.375 inches

Hole Quantity

Hole Type

Drilled

Features Provided

Finished head

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

55000 pounds per square inch

Hardness Rating

95.0 rockwell b

Hole Configuration Style

Round

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel

Material Specification

Sae gr 1 assn standard single material response

Thread Series Designator

Unc

Nondefinitive Specification/std Data

2 type and 10p style and 5 grade

Departure From Cited Designator

As modified by head height and head hole configuration

NSN

5306-00-270-8324

Part Number

MILB857

Description

Bolt,machine

CAGE

81349

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 MILB857 NSN 5306-00-270-8324

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