Model: S4DS420-7C

Socket Head Cap Screw

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

Between 0.338 inches and 0.438 inches

Fastener Length

0.438 inches

Head Style

Hexagon

Head Height

Between 0.425 inches and 0.438 inches

Width Between Flats

Between 0.150 inches and 0.188 inches

Locking Feature

Strip threads

Internal Drive Style

W/o internal drive

Thread Diameter

0.250 inches

Thready Qty Per Inch (tpi)

Hardness Rating

23.0 rockwell c and 32.0 rockwell c

Hardness Rating

23.0 rockwell c and 32.0 rockwell c

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel

Material Specification

Sae gr 5 assn standard single material response

Surface Treatment

Cadmium

Thread Series Designator

Unc

NSN

5305-00-548-5790

Part Number

S4DS420-7C

Description

Screw,cap,socket Head

CAGE

14438

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes items with bevel (conical) heads. See bolt, internal wrenching. Excludes screw, shoulder; and screw, machine.

Part S4DS420-7C NSN 5305-00-548-5790

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

16282

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:

096640

UFC:

50600

LTL:

70.0

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