Model: NAS720B6-4

Assembled Washer Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.157 inches

Fastener Length

0.250 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

Slot

Thread Diameter

0.138 inches

Thready Qty Per Inch (tpi)

Secondary Washer Relationship To Primary Washer

Not identical

Secondary Washer Style

Flat

Primary Washer Style

Split helical ring

Primary Washer Material Thickness

Between 0.031 inches and 0.037 inches

Secondary Washer Material Thickness

Between 0.031 inches and 0.037 inches

Material

Copper alloy

Surface Treatment

Tin

Thread Series Designator

Unc

Specification Data

80205-nas720 professional/industrial association standard

NSN

5305-00-935-7542

Part Number

NAS720B6-4

Description

Screw,assembled Washer

CAGE

80205

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

Part NAS720B6-4 NSN 5305-00-935-7542

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:

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:

096630

UFC:

50590

LTL:

70.0

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 7415338550
SITC: 69433
End Use: Finished metal shapes
NAICS: 332722
USDA: 1

Freight Class: Other copper screws (not for wood) bolts and nuts