Model: 20565-1

Internal Wrenching Bolt

Description:

3a thread class, right-hand , 0.304 inches thread length, 0.609 inches fastener length, 0.262 inches head diameter, 0.159 inches head height.

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.304 inches

Fastener Length

Between 0.609 inches and 0.641 inches

Head Diameter

Between 0.262 inches and 0.270 inches

Head Height

Between 0.159 inches and 0.164 inches

First Diameter From Head

Between 0.095 inches and 0.097 inches

Second Diameter From Head

Between 0.260 inches and 0.270 inches

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

Between 0.185 inches and 0.195 inches

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

Between 0.225 inches and 0.245 inches

Internal Drive Style

Hexagon

Thread Diameter

0.138 inches

Width Across Flats

Between 0.140 inches and 0.142 inches

Thready Qty Per Inch (tpi)

Hardness Rating

34.0 rockwell c and 40.0 rockwell c

Hardness Rating

34.0 rockwell c and 40.0 rockwell c

Surface Finish

63.0 microinches bearing surface of head

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 416

Surface Treatment

Passivate

Surface Treatment Specification

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

Thread Series Designator

Unc

NSN

5306-00-004-5125

Part Number

20565-1

Description

Bolt,internal Wrenching

CAGE

09344

An externally threaded fastener whose threaded portion is of one nominal diameter, no. 10 (0.190 in.) (5 mm) or larger. It is designed with an internal socket or internal multiple spline for use with an internal driver. The head is beveled (conical) or cylindrical in shape. Items with cylindrical shaped heads must have an externally relieved body. A locking feature may be incorporated in the design of the head or threads. See also screw, cap, socket head. Excludes setscrew; screw, shoulder; bolt, shoulder; screw, externally relieved body; bolt, externally relieved body; and screw, machine.

Part 20565-1 NSN 5306-00-004-5125

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06666

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:

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