Model: 720290-157

Assembled Washer Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.450 inches and 0.500 inches

Fastener Length

0.500 inches

Head Style

Pan

Head Diameter

Between 0.205 inches and 0.219 inches

Head Height

Between 0.070 inches and 0.080 inches

Washer Quantity

Internal Drive Style

Cross recess type 1

Thread Diameter

0.112 inches

Thready Qty Per Inch (tpi)

Hardness Rating

45.0 rockwell c primary washer and 53.0 rockwell c primary washer

Secondary Washer Relationship To Primary Washer

Not identical

Secondary Washer Style

Flat

Primary Washer Outside Diameter

0.209 inches

Secondary Washer Outside Diameter

Between 0.307 inches and 0.320 inches

Primary Washer Style

Split helical ring

Primary Washer Material Thickness

Between 0.025 inches and 0.031 inches

Secondary Washer Material Thickness

Between 0.025 inches and 0.040 inches

Material Specification

Astm-a576 assn standard all material responses primary washer or astm-a108 assn standard all material responses primary washer

Material Specification

Astm-a576 assn standard all material responses fastener or astm-a108 assn standard all material responses fastener

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

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

Thread Series Designator

Unc

NSN

5305-00-194-0768

Part Number

720290-157

Description

Screw,assembled Washer

CAGE

05869

Part 720290-157 NSN 5305-00-194-0768

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:

093486

UFC:

48950

LTL:

RATING VARIABLE

LCL:

WCC:

713

TCC:

SHC:

ACC:

Construction Materials

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