Model: MS18066-53

Setscrew

Properties:

Thread Class

Thread Direction

Right-hand

Fastener Length

Between 0.615 inches and 0.635 inches

Head Style

Headless (setscrew)

Locking Feature

Patch threads or pellet threads or strip threads

Point Style

Flat

Internal Drive Style

Hexagon

Thread Diameter

0.500 inches

Width Across Flats

Between 0.250 inches and 0.252 inches

Thready Qty Per Inch (tpi)

Hardness Rating

35.0 rockwell c fastener and 45.0 rockwell c fastener

Material

Plastic polyamide locking featuresteel comp 302 fastener or steel comp 303 fastener or steel comp 304 fastener or steel comp 316 fastener

Material Specification

66 federal standard all material responses fastener

Surface Treatment

Passivate fastener

Surface Treatment Specification

Qq-p-35 federal specification single treatment response fastener

Thread Series Designator

Unf

Nondefinitive Specification/std Data

1 type and 1 style

NSN

5305-01-354-3718

Part Number

MS18066-53

Description

Setscrew

CAGE

96906

An externally threaded device whose threaded portion is of one nominal diameter with or without a head and having a cup, cone, or other type of machined point designed to prevent or restrict relative movement of parts and designed to be driven with either a wrench or inserted driver. A locking feature may be incorporated in the design of the head or threads.

Part MS18066-53 NSN 5305-01-354-3718

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06672

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:

713

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