Model: 21A0070-000

Panel Screw Assembly

Properties:

Thread Class

Thread Direction

Right-hand

Thread Length

0.250 inches

Fastener Length

0.535 inches

Head Style

Flat countersunk

Head Diameter

0.300 inches

Internal Drive Style

Cross recess type ii

Material Accommodated Thickness

Between 0.090 inches and 0.125 inches

Thread Diameter

0.190 inches

Thready Qty Per Inch (tpi)

Hardness Rating

38.0 rockwell c fastener and 41.0 rockwell c fastener

Countersink Angle

Between 99.0 degrees and 101.0 degrees

Part Name Assigned By Controlling Agency

Navy special project

Material

Steel comp 304 stand-off or steel comp 304l stand-off or steel comp 347 stand-off or steel comp 348 stand-off

Material

Steel comp 8740 fastener

Material Specification

Mil-s-23195 military specification all material responses stand-off

Material Specification

Mil-s-6049 military specification single material response fastener

Surface Treatment

Cadmium and chromate

Surface Treatment Specification

Qq-p-416 type 2 cl 3 federal specification single treatment response

Thread Series Designator

Unc

NSN

5305-01-008-6405

Part Number

21A0070-000

Description

Screw Assembly,panel

CAGE

4S536

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 21A0070-000 NSN 5305-01-008-6405

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:

093486

UFC:

48950

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