Model: ATT1740D-11

Internally Relieved Body Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.427 inches and 0.466 inches

Fastener Length

1.830 inches

Head Style

Round w/wrench flats

Head Diameter

1.250 inches

Head Height

0.120 inches

Width Between Flats

Between 1.053 inches and 1.066 inches

Shoulder Diameter

Between 0.7485 inches and 0.7490 inches

Shoulder Length

Between 1.310 inches and 1.320 inches

Shank Unthreaded Hole Diameter

0.111 inches first hole

Concentric Hole Depth

1.190 inches

Concentric Hole Diameter

0.375 inches

Thread Diameter

0.375 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

180000 pounds per square inch

Criticality Code Justification

Aavh

Distance From Head Largest Bearing Surface To Shank Hole Center

1.668 inches first hole

Material

Steel

Material Specification

Mil-s-5626, cond c4 military specification single material response

Surface Treatment

Cadmium

Surface Treatment Specification

Lcp 1067, fscm 36659 mfr ref single treatment response

Style Designator

Concentric hole unthreaded

Thread Series Designator

Unjf

NSN

5306-01-042-1753

Part Number

ATT1740D-11

Description

Bolt,internally Relieved Body

CAGE

77445

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

Part ATT1740D-11 NSN 5306-01-042-1753

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06676

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:

1.0000lbs

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