Model: 74A410640-2001

Internally Relieved Body Bolt

Special Features:

2 keyways in thd end 0.125 in. Min to 0.130 in. Max w by 0.245 in. Lg

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.300 inches

Fastener Length

1.750 inches

Head Style

Dee

Head Diameter

1.000 inches

Head Height

0.093 inches

Distance From Centerline To Flat

Between 0.435 inches and 0.440 inches

Counterbore Diameter

Between 0.438 inches and 0.440 inches

Counterbore Depth

1.558 inches

Concentric Hole Diameter

Between 0.406 inches and 0.413 inches

Thread Diameter

0.625 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

280000 pounds per square inch

Criticality Code Justification

Aasy

Material

Steel

Material Specification

Mil-s-8844, class 3, cond e2 military specification single material response

Surface Treatment

Chromate

Style Designator

Counterbore unthreaded

Thread Series Designator

Unjf

NSN

5306-01-121-1656

Part Number

74A410640-2001

Description

Bolt,internally Relieved Body

CAGE

76301

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 74A410640-2001 NSN 5306-01-121-1656

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:

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