Model: 725379-4

Internal Wrenching Bolt

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.562 inches

Fastener Length

1.850 inches

Head Diameter

0.526 inches

Head Height

0.276 inches

Internal Drive Style

Hexagon

Thread Diameter

0.312 inches

Width Across Flats

0.063 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

180000 pounds per square inch

Hardness Rating

40.0 rockwell c and 43.0 rockwell c

Hardness Rating

40.0 rockwell c and 43.0 rockwell c

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 4340 or steel comp 8740

Material

Steel comp 4340 or steel comp 8740

Material Specification

Mil-s-6049, c4 military specification all material responses

Surface Treatment

Cadmium

Thread Series Designator

Unf

NSN

5306-00-298-5045

Part Number

725379-4

Description

Bolt,internal Wrenching

CAGE

98897

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part 725379-4 NSN 5306-00-298-5045

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06666

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