Model: 78027

Externally Relieved Body Bolt

Special Features:

Thd point flatted to 0.260 in. W by 0.160 in. Lg, top of head partially beveled to 30.0 deg

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.560 inches

Fastener Length

2.270 inches

Head Style

Dee

Head Diameter

Between 0.620 inches and 0.630 inches

Head Height

0.190 inches

Distance From Centerline To Flat

Between 0.240 inches and 0.250 inches

First Diameter From Head

Between 0.316 inches and 0.321 inches

Second Diameter From Head

Between 0.3805 inches and 0.3810 inches

Third Diameter From Head

Between 0.3695 inches and 0.3735 inches

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

0.630 inches

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

Between 1.094 inches and 1.157 inches

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

Between 1.469 inches and 1.595 inches

Thread Diameter

0.375 inches

Thready Qty Per Inch (tpi)

Hardness Rating

30.0 rockwell c and 34.0 rockwell c

Externally Relieved Body Diameter Quantity

Material

Steel comp 8740

Thread Series Designator

Unf

NSN

5306-00-131-2599

Part Number

78027

Description

Bolt,externally Relieved Body

CAGE

80254

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 78027 NSN 5306-00-131-2599

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:

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