Model: 123AMM40185-1

Internally Relieved Body Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.964 inches

Fastener Length

2.562 inches

Head Style

Round w/wrench flats

Head Diameter

1.750 inches

Head Height

0.190 inches

Width Between Flats

1.500 inches

Shoulder Diameter

Between 1.247 inches and 1.248 inches

Shoulder Length

1.598 inches

Shank Unthreaded Hole Diameter

0.069 inches first hole and 0.074 inches first hole

Counterbore Diameter

Between 0.858 inches and 0.869 inches

Counterbore Depth

1.312 inches

Concentric Hole Diameter

Between 0.717 inches and 0.726 inches

Thread Diameter

1.125 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

165 pounds per square inch

Hardness Rating

37.0 rockwell c and 40.0 rockwell c

Distance From Head Largest Bearing Surface To Shank Hole Center

2.437 inches first hole

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 4340

Surface Treatment

Cadmium

Style Designator

Counterbore unthreaded

Thread Series Designator

Unf

NSN

5306-00-894-2124

Part Number

123AMM40185-1

Description

Bolt,internally Relieved Body

CAGE

26512

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 123AMM40185-1 NSN 5306-00-894-2124

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:

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