Model: GS553A4E20C

Panel Screw Assembly

Special Features:

Straight knurl

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.375 inches

Fastener Length

1.250 inches

Head Style

Knurled no. 4

Head Diameter

0.686 inches

Head Height

0.250 inches

Internal Drive Style

Slot

Material Accommodated Thickness

0.125 inches

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Material

Stainless steel fastener

Material

Stainless steel stand-off

Surface Treatment

Passivate fastener

Surface Treatment

Passivate stand-off

Thread Series Designator

Unc

NSN

5305-01-075-2093

Part Number

GS553A4E20C

Description

Screw Assembly,panel

CAGE

26512

A headed, threaded fastening device over which may be assembled; (1) a stand-off; (2) a flanged bushing with washer(s) and/or a shouldered bushing without a flange, or it may have an internally threaded sleeve that is an integral part of the screw; a washer and an externally thread self-locking bushing that is driven by an inserted driver. Attached to panel by threaded bushing or by flaring end of stand-off, or bushing. Used in conjunction with a speed nut, nut plate, or driven into a threaded hole in the item that the panel is fastened to. May be spring loaded.

Part GS553A4E20C NSN 5305-01-075-2093

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

33044

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:

066440

UFC:

36960

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