Model: 71657CR6-6440

Shoulder Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.261 inches and 0.281 inches

Fastener Length

Between 0.805 inches and 0.825 inches

Head Style

Hexagon

Head Height

Between 0.172 inches and 0.204 inches

Width Between Flats

Between 0.492 inches and 0.502 inches

Shoulder Diameter

0.3735 inches first shoulder and 0.3745 inches first shoulder

Shoulder Length

0.430 inches first shoulder and 0.450 inches first shoulder

Shank Unthreaded Hole Diameter

0.076 inches first hole and 0.086 inches first hole

Thread Diameter

0.312 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

220000 pounds per square inch

Hardness Rating

47.0 rockwell c and 50.0 rockwell c

Distance From Head Largest Bearing Surface To Shank Hole Center

0.645 inches first hole and 0.665 inches first hole

Shoulder Shape

Round first shoulder

Material

Steel comp h11

Material Specification

Ams 6487 assn standard single material response

Surface Treatment Specification

Qq-c-320 federal specification single treatment response and nas 672 assn standard 1st treatment response

Thread Series Designator

Unf

NSN

5306-00-448-7450

Part Number

71657CR6-6440

Description

Bolt,shoulder

CAGE

56878

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is not designed to be held or driven with an inserted drivers. A locking feature may be incorporated in the design of the head or threads. For items with a thread diameter smaller than no. 10 (0.190 in.) (5 mm) and those items with an inserted drive head, use screw, shoulder. For items which are no. 10 (0.190 in.) (5 mm) or larger in size and are both shouldered and have an externally relieved body, use bolt, externally relieved body. Excludes thumbscrew.

Part 71657CR6-6440 NSN 5306-00-448-7450

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

04905

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