Model: NAS720-6-6

Assembled Washer Screw

Special Features:

Lockwasher and washer not rated screw 55000 lbs per sq in.

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.282 inches

Fastener Length

0.375 inches

Head Style

Pan no. 2

Head Diameter

Between 0.256 inches and 0.273 inches

Head Height

Between 0.072 inches and 0.082 inches

Washer Quantity

Internal Drive Style

Slot

Thread Diameter

0.138 inches

Thready Qty Per Inch (tpi)

Hardness Rating

45.0 rockwell c and 53.0 rockwell c

Secondary Washer Relationship To Primary Washer

Not identical

Secondary Washer Style

Flat

Primary Washer Outside Diameter

0.250 inches

Secondary Washer Outside Diameter

0.258 inches

Primary Washer Style

Split helical ring

Primary Washer Material Thickness

0.031 inches

Secondary Washer Material Thickness

0.016 inches

Material

Steel

Material Specification

Qq-s-634 federal specification 1st material response or 66 federal standard 2nd material response or aisi/sae assn standard 2nd material response or 66 federal standard 3rd material response or aisi/sae assn standard 3rd material response or 66 federal standard 4th material response or aisi/sae assn standard 4th material response or 66 federal standard 5th material response or aisi/sae assn standard 5th material response or 66 federal standard 6th material response or aisi/sae assn standard 6th material response or 66 federal standard 7th material response or aisi/sae assn standard 7th material response or 66 federal standard 8th material response or aisi/sae assn standard 8th material response or 66 federal standard 9th material response or aisi/sae assn standard 9th material response or 66 federal standard 10th material response or aisi/sae assn standard 10th material response or 66 federal standard 11th material response or aisi/sae assn standard 11th material response or 66 federal standard 12th material response or aisi/sae assn standard 12th material response or 66 federal standard 13th material response or aisi/sae assn standard 13th material response or qq-s-626-canc federal specification 14th material response or mil-s-7952 military specification 15th material response or mil-s-7952 military specification 16th material response

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 2 class 3 federal specification single treatment response

Thread Series Designator

Unc

Specification Data

80205-nas720 professional/industrial association standard

NSN

5305-00-820-6355

Part Number

NAS720-6-6

Description

Screw,assembled Washer

CAGE

80205

A screw, (as modified) to which has been assembled one or more nonremovable washer(s).

Part NAS720-6-6 NSN 5305-00-820-6355

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:

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