Model: 546-8186-003

Externally Relieved Body Screw

Special Features:

Furnished w/one captivated flat cres washer

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.344 inches and 0.376 inches

Fastener Length

Between 1.797 inches and 1.859 inches

Head Style

Fillister countersunk

Head Diameter

Between 0.235 inches and 0.245 inches

Head Height

Between 0.132 inches and 0.156 inches

First Diameter From Head

Between 0.116 inches and 0.119 inches

Second Diameter From Head

Between 0.139 inches and 0.145 inches

Third Diameter From Head

Between 0.224 inches and 0.244 inches

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

0.294 inches

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

1.200 inches

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

1.262 inches

Internal Drive Style

Slot

Thread Diameter

0.164 inches

Thready Qty Per Inch (tpi)

Countersink Angle

90.0 degrees

Externally Relieved Body Diameter Quantity

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 430

Material Specification

Qq-s-763 federal specification single material response

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35, type 2 federal specification single treatment response

Thread Series Designator

Unc

NSN

5305-00-862-2002

Part Number

546-8186-003

Description

Screw,externally Relieved Body

CAGE

13499

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 undercut for thread relief). It is no. 0 (0.060 in.) (1.5 mm) or larger, and is designed to be held or driven with either a wrench or inserted driver (excluding internal socket and multiple spline types) or both in sizes below no. 10 (0.190 in.) (5 mm) and larger sizes must have a head designed for any type inserted driver (excluding internal socket and 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. See also bolt, externally relieved body and bolt, internal wrenching.

Part 546-8186-003 NSN 5305-00-862-2002

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

01852

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