Model: 72146

Externally Relieved Body Screw

Special Features:

W/header point

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.969 inches

Fastener Length

Between 1.174 inches and 1.184 inches

Head Style

Pan no. 2

Head Diameter

Between 0.292 inches and 0.302 inches

Head Height

0.109 inches

First Diameter From Head

Between 0.175 inches and 0.185 inches

Second Diameter From Head

Between 0.292 inches and 0.302 inches

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

Between 0.081 inches and 0.091 inches

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

Between 0.143 inches and 0.153 inches

Internal Drive Style

Slot

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Externally Relieved Body Diameter Quantity

Material

Steel comp 1212 or steel comp 1213 or steel comp 1015 or steel comp 1016 or steel comp 1017 or steel comp 1018 or steel comp 1019 or steel comp 1020 or steel comp 1021 or steel comp 1022 or steel comp 1023 or steel comp 1524

Material Specification

Qq-s637 federal specification 1st material response or qq-s-637 federal specification 2nd material response

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416, type 2, cl 3 federal specification all treatment responses

Thread Series Designator

Unf

NSN

5305-00-353-0969

Part Number

72146

Description

Screw,externally Relieved Body

CAGE

95097

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 72146 NSN 5305-00-353-0969

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:

0.1000lbs

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