Model: NAS720-4-8

Assembled Washer Screw

Special Features:

Supplied w/split helical ring washer 0.025 in. To 0.031 in. Thk, chromate treated cadmium plated steel

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.403 inches

Fastener Length

0.500 inches

Head Style

Pan no. 2

Head Diameter

Between 0.205 inches and 0.219 inches

Head Height

Between 0.058 inches and 0.068 inches

Washer Quantity

Internal Drive Style

Torque

Thread Diameter

0.112 inches

Thready Qty Per Inch (tpi)

Primary Washer Outside Diameter

Between 0.213 inches and 0.223 inches

Primary Washer Style

Flat

Primary Washer Material Thickness

Between 0.013 inches and 0.019 inches

Material

Steel

Surface Treatment

Cadmium and dichromate

Thread Series Designator

Unc

NSN

5305-00-791-8885

Part Number

NAS720-4-8

Description

Screw,assembled Washer

CAGE

80205

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

Part NAS720-4-8 NSN 5305-00-791-8885

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:

50.0

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