Model: NAS498

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.313 inches and 0.363 inches

Fastener Length

Between 0.698 inches and 0.728 inches

Head Style

Pan

Head Diameter

Between 0.357 inches and 0.373 inches

Head Height

Between 0.122 inches and 0.132 inches

Locking Feature

Patch threads or pellet threads or strip threads

Internal Drive Style

Offset cruciform (torque set)

Thread Diameter

0.190 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

160000 pounds per square inch

Hardness Rating

36.0 rockwell c and 40.0 rockwell c

Surface Finish

32.0 microinches grip

Surface Finish

32.0 microinches threads

Material

Plastic polyamide locking feature

Material

Steel comp 4140 fastener or steel comp 4340 fastener or steel comp 8740 fastener

Material Specification

Mil-s-5626 military specification 1st material response fastener or mil-s-5000 military specification 2nd material response fastener or mil-s-6049 military specification 3rd material response fastener

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416 type 2 cl2 federal specification single treatment response fastener

Thread Series Designator

Unjf

Specification Data

80205-nas1173 professional/industrial association standard

NSN

5305-00-917-2672

Part Number

NAS498

Description

Screw,cap,socket Head

CAGE

80205

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part NAS498 NSN 5305-00-917-2672

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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