HA21

View detailed technical data, stock status, and sourcing information for: HA21
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Federal Supply Group

Metal Bars, Sheets, and Shapes

Federal Supply Classification

9540 Nonferrous Base Metal Structural Shapes

National Stock Number

9540-00-542-2704

Item Name Code

37017

Assigment Date

01/01/1963 (63 years ago)

A structural shape fabricated from a ferrous or nonferrous material and resembling the letter l in cross-sectional form. The edges may have a bulb, be rounded, and the inside corner may have a fillet.

20.000 feet minimum and 30.000 feet maximum length, 1.750 inches nominal overall height, 0.250 inches nominal left side flange thickness, extruded fabrication method, 1.750 inches nominal overall width

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Fabrication Method: extruded
Overall Height: 1.750 inches nominal
Overall Width: 1.750 inches nominal
Length: 20.000 feet minimum and 30.000 feet maximum
Left Side Flange Thickness: 0.250 inches nominal
Basic Shape Style: angle
Fillet Radius Where Left Flange Joins Base Flange: 0.188 inches nominal
Base Flange Thickness: 0.250 inches nominal
First Tip Radius: 0.125 inches nominal
Weight Per Unit Measure: 0.980 pounds per linear foot
First Tip Style: right quarter radius
Second Tip Radius: 0.125 inches nominal
Second Tip Relationship To First Tip: not identical
Second Tip Style: upper radius
Left Inside Angle: 90.0 degrees nominal
Heat Treatment: h-111 strain hardened
Material: aluminum alloy 5086
Material Document And Classification: ams-qq-a-200/5 fed spec single material response
Nondefinitive Spec/Std Data: h111 temper

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
HA21	Structural Angle
MCI-L32	Structural Angle

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 9540-00-542-2704?

The FSCG of the NSN 9540-00-542-2704 is 9540

Does NSN 9540-00-542-2704 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 9540-00-542-2704 contain precious materials?

Item does not contain precious metal.

Does NSN 9540-00-542-2704 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 9540-00-542-2704 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963