Model: NAS720-6-8

Assembled Washer Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.406 inches

Fastener Length

0.500 inches

Head Style

Pan no. 2

Head Diameter

Between 0.256 inches and 0.270 inches

Head Height

Between 0.072 inches and 0.082 inches

Washer Quantity

Internal Drive Style

Cross recess type 1

Thread Diameter

0.138 inches

Thready Qty Per Inch (tpi)

Secondary Washer Relationship To Primary Washer

Not identical

Secondary Washer Style

Flat

Primary Washer Outside Diameter

0.253 inches

Secondary Washer Outside Diameter

Between 0.253 inches and 0.263 inches

Primary Washer Style

Split helical ring

Primary Washer Material Thickness

Between 0.031 inches and 0.037 inches

Secondary Washer Material Thickness

Between 0.013 inches and 0.019 inches

Material Specification

Qq-s-630 federal specification 1st material response or qq-s-631 federal specification 1st material response or qq-s-634 federal specification 1st material response or qq-s-633 federal specification 2nd material response or qq-s-633 federal specification 3rd material response or qq-s-633 federal specification 4th material response or qq-s-633 federal specification 5th material response or qq-s-633 federal specification 6th material response or qq-s-633 federal specification 7th material response or qq-s-633 federal specification 8th material response or qq-s-633 federal specification 9th material response or qq-s-633 federal specification 10th material response or qq-s-633 federal specification 11th material response or qq-s-633 federal specification 12th material response or qq-s-633 federal specification 13th material response or qq-s-633 federal specification 14th material response or qq-s-636, 1/2 hard federal specification 15th material response or mil-s-7952 military specification 16th material response or mil-s-7952 military specification 17th 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

Unc

NSN

5305-00-952-7396

Part Number

NAS720-6-8

Description

Screw,assembled Washer

CAGE

80205

Part NAS720-6-8 NSN 5305-00-952-7396

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

06660

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:

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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