Model: 6439554-1

Panel Fastener Screw

Properties:

Thread Class

Thread Length

0.190 inches

Fastener Length

0.560 inches

Head Style

Flat fillister

Head Diameter

0.3075 inches

Head Height

Between 0.180 inches and 0.190 inches

Internal Drive Style

Hexagon

End Application

1920-01-298-7770

Thread Diameter

0.190 inches

Width Across Flats

0.157 inches

Thready Qty Per Inch (tpi)

Material

Steel

Surface Treatment

Passivate

Surface Treatment Specification

Qq-p-35, type vii federal specification single treatment response

Thread Series Designator

Unrf

NSN

5305-01-465-8956

Part Number

6439554-1

Description

Screw,panel Fastener

CAGE

1JNU9

A headed, threaded fastening device with special square threads, which is designed to be attached to a panel by means of a retaining washer. The screw fastener is used in conjunction with a speed nut to facilitate fastening two items.

Part 6439554-1 NSN 5305-01-465-8956

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

19665

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:

573

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