NAS1801-3-09

View detailed technical data, stock status, and sourcing information for: NAS1801-3-09
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-572-6751

Item Name Code

06657

Assigment Date

03/19/2009 (17 years ago)

A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)

0.562 inches nominal fastener length, right-hand thread direction, 0.105 inches minimum and 0.120 inches maximum head height, 0.498 inches minimum and 0.546 inches maximum thread length, hexagon head style

Product Characteristics

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

Thread Direction: right-hand
Thread Length: 0.498 inches minimum and 0.546 inches maximum
Fastener Length: 0.562 inches nominal
Head Style: hexagon
Head Height: 0.105 inches minimum and 0.120 inches maximum
Width Between Flats: 0.305 inches minimum and 0.314 inches maximum
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.190 inches
Thread Quantity Per Inch: 32
Part Name Assigned By Controlling Agency: screw,hex head,cruciform recess,full thread,alloy steel,160ksi ftu
Screw Material: steel comp 4140 or steel comp 4340 or steel comp 8740
Thread Series Designator: unjf

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
NAS1801-3-09	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-572-6751?

The FSCG of the NSN 5305-01-572-6751 is 5305

Does the NSN 5305-01-572-6751 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-572-6751 require demilitarization?

"commerce control list items (ccli) - mut to the point of scrap required outside the united states. Inside the united states, mut is required when the demil integrity code (ic) is "3" and mut is not required when the demic is "6" (note 8)"

Does NSN 5305-01-572-6751 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-572-6751 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 5305-01-572-6751 was assigned to the Federal Catalog?

It was assigned 17 years ago, on Thu, Mar 19, 2009