Model: DCT7900-4B3

Panel Screw Assembly

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.203 inches

Fastener Length

0.535 inches

Head Style

Pan no. 2

Head Diameter

0.219 inches

Head Height

0.178 inches

Material Accommodated Thickness

Between 0.126 inches and 0.187 inches

Thread Diameter

0.112 inches

Thready Qty Per Inch (tpi)

Hardness Rating

34.0 rockwell c fastener and 38.0 rockwell c fastener

Part Name Assigned By Controlling Agency

Navy special project

Material

Copper alloy 360 stand-off

Material

Steel comp 4037 fastener

Surface Treatment

Cadmium

Surface Treatment Specification

Qq-p-416, type 1 class 2 federal specification all treatment responses

Thread Series Designator

Unc

NSN

5305-01-042-2991

Part Number

DCT7900-4B3

Description

Screw Assembly,panel

CAGE

0HDW7

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 DCT7900-4B3 NSN 5305-01-042-2991

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