Model: A7478-5

Assembled Washer Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.312 inches

Fastener Length

0.312 inches

Head Style

Round

Head Diameter

Between 0.193 inches and 0.211 inches

Head Height

Between 0.075 inches and 0.086 inches

Washer Quantity

Internal Drive Style

Slot

Thread Diameter

0.112 inches

Thready Qty Per Inch (tpi)

Min. Tensile Strength (psi)

60000 pounds per square inch

Primary Washer Outside Diameter

Between 0.220 inches and 0.230 inches

Primary Washer Style

Flat external teeth

Primary Washer Material Thickness

Between 0.014 inches and 0.018 inches

Material

Steel comp 1010

Surface Treatment

Cadmium

Thread Series Designator

Unc

NSN

5305-00-685-7937

Part Number

A7478-5

Description

Screw,assembled Washer

CAGE

07639

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

Part A7478-5 NSN 5305-00-685-7937

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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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