Model: 71657H-7-2455

Externally Relieved Body Bolt

Special Features:

Dry film lube per mil-l-46010 grip only

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.324 inches and 0.344 inches

Fastener Length

Between 2.893 inches and 2.903 inches

Head Style

Hexagon

Head Height

Between 0.183 inches and 0.215 inches

Width Between Flats

0.558 inches

First Diameter From Head

Between 0.437 inches and 0.438 inches

Distance From Largest Bearing Surface Of Head To End Of First Diameter

Between 2.445 inches and 2.465 inches

End Application

Pacer dawn

Thread Diameter

0.375 inches

Thready Qty Per Inch (tpi)

Hardness Rating

46.0 rockwell c and 55.0 rockwell c

Externally Relieved Body Diameter Quantity

Material

Steel comp h11

Material Specification

Ams 6487 (h-11) assn standard single material response

Surface Treatment

Cadmium threads

Surface Treatment

Cadmium head

Surface Treatment Specification

Nas 672 national specification single treatment response head

Surface Treatment Specification

Nas 672 national specification single treatment response threads

Thread Series Designator

Unjf

NSN

5306-01-337-2300

Part Number

71657H-7-2455

Description

Bolt,externally Relieved Body

CAGE

56878

An externally threaded fastener whose threaded portion is of one nominal diameter, and whose unthreaded portion has been machined or ground in one or more places or over its entire length to a maximum diameter less than the minimum pitch diameter of the thread (excludes undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.

Part 71657H-7-2455 NSN 5306-01-337-2300

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06675

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:

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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