Model: 237205

Externally Relieved Body Bolt

Properties:

Thread Direction

Right-hand

Thread Length

Between 0.512 inches and 0.542 inches

Fastener Length

Between 0.740 inches and 0.760 inches

Head Style

Double hexagon extended washer

Head Height

Between 0.272 inches and 0.292 inches

Width Between Flats

Between 0.300 inches and 0.315 inches

Extended Washer Diameter

Between 0.428 inches and 0.448 inches

Extended Washer Thickness

Between 0.060 inches and 0.080 inches

First Diameter From Head

Between 0.218 inches and 0.228 inches

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

Between 0.065 inches and 0.125 inches

Thread Diameter

0.250 inches

Nonstandard Thread Pitch Diameter

+0.2213/+0.2238 inches

Thready Qty Per Inch (tpi)

Hardness Rating

30.0 rockwell c and 38.0 rockwell c

Externally Relieved Body Diameter Quantity

Material

Steel comp 601

Material Specification

Ams 6304 assn standard single material response

Surface Treatment

Nickel and cadmium

Surface Treatment Specification

Ams 2416 assn standard all treatment responses

Thread Series Designator

Unf

NSN

5306-00-207-5172

Part Number

237205

Description

Bolt,externally Relieved Body

CAGE

77445

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 undercuts for thread relief). It is no. 10 (0.190 in.) (5 mm) or larger in size and has a head which is not designed to be held or driven with an inserted driver or designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. Excludes bolt, internal wrenching and thumbscrew. See also screw, externally relieved body.

Part 237205 NSN 5306-00-207-5172

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06675

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:

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