Model: 02398-2

Machine Screw

Special Features:

This item is flight safety critical. Thread is safety critical per mil-s-8879 under application category safety critical. Apply one coat of mil-p-23377, type 1, cl 1 or 3 and two top coats of mil-c-46168, color code 33538 per fed-std-595 to side of head.

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.625 inches

Fastener Length

Between 0.594 inches and 0.625 inches

Head Style

Flat chamfer

Head Diameter

Between 0.306 inches and 0.313 inches

Head Height

Between 0.103 inches and 0.118 inches

Locking Feature

Pellet

Internal Drive Style

Torque set

Thread Diameter

0.190 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

160000 pounds per square inch

Criticality Code Justification

Feat

Screw Material

Iron alloy 660

Locking Feature Material

Plastic polyamide or plastic polychlorotrifluoroethylene

Screw Material Specification

Ams 5737 assn standard single material response

Locking Feature Material Specification

Ams 3650 assn standard 2nd material response

Screw Surface Treatment

Passivate

Screw Surface Treatment Specification

Qq-p-35 federal specification single treatment response

Bearing Surface Of Head Surface Finish

32.0 microinches

Thread Surface Finish

32.0 microinches

Thread Series Designator

Unjf

NSN

5305-01-386-6079

Part Number

02398-2

Description

Screw,machine

CAGE

14153

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in./1.5 mm) or larger, designed to be held or driven with either a wrench or an inserted driver or both (excluding internal socket or internal multiple spline types), in sizes below no. 10 (0.190 in./5 mm). No. 10 and larger sizes must have a head designed for any type inserted driver (excluding internal socket or internal multiple spline types), but may also be designed for external wrenching. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, clevis; bolt, externally relieved body; screw, externally relieved body; and screw, assembled washer. See also, screw, instrument; bolt, machine; bolt, internal wrenching; and screw, cap socket head.

Part 02398-2 NSN 5305-01-386-6079

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06657

FIIG:

A500D0

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:

133300

UFC:

63220

LTL:

RATING VARIABLE

LCL:

WCC:

72E

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