Model: 178755

Assembled Washer Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.625 inches

Fastener Length

0.625 inches

Head Style

Round

Head Diameter

Between 0.443 inches and 0.472 inches

Head Height

Between 0.160 inches and 0.175 inches

Washer Quantity

Internal Drive Style

Torque

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Primary Washer Outside Diameter

Between 0.462 inches and 0.474 inches

Primary Washer Style

Flat external teeth

Primary Washer Material Thickness

0.025 inches

Material

Steel comp 1010 or steel comp 1011 or steel comp 1015 or steel comp 1016 or steel comp 1018 or steel comp 1019 or steel comp 1020

Material Specification

Qq-s-633 federal specification all material responses

Surface Treatment

Cadmium or zinc

Thread Series Designator

Unc

NSN

5305-00-017-8755

Part Number

178755

Description

Screw,assembled Washer

CAGE

7X677

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

Part 178755 NSN 5305-00-017-8755

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