HW20328

View detailed technical data, stock status, and sourcing information for: HW20328
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-617-0403

Item Name Code

18257

Assigment Date

03/07/2013 (13 years ago)

Two or more relays (as modified) having a common mounting or mounted on each other. If item contains electronic components see electronic component assembly. Excludes:amplifier-relay assembly; relay assembly group; and relay-switch.

right-hand thread direction, hexagon head style, 0.97 inches minimum and 1.00 inches maximum fastener length, 2a thread class, 0.97 inches minimum and 1.00 inches maximum thread length

Product Characteristics

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

Thread Class: 2a
Thread Direction: right-hand
Thread Length: 0.97 inches minimum and 1.00 inches maximum
Fastener Length: 0.97 inches minimum and 1.00 inches maximum
Head Style: hexagon
Head Height: 0.195 inches minimum and 0.211 inches maximum
Width Between Flats: 0.489 inches minimum and 0.500 inches maximum
End Item Identification: 2355-01-539-3639
Nominal Thread Diameter: 0.3125 inches
Thread Quantity Per Inch: 18
Chamfer Angle: 15.0 degrees minimum and 30.0 degrees maximum
Part Name Assigned By Controlling Agency: 5/16-18x1,hex cap screw,18-8 stainless steel
Material: steel property class 18.8 overall
Material Document And Classification: alloy,group 1,cond cw of astm f593 assn std single material response overall
Surface Treatment Document And Classification: descaled or clean iaw astm a380 assn std single treatment response overall
Thread Series Designator: unc

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
70055	Hexagon Head Cap Screw
HW20328	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-617-0403?

The FSCG of the NSN 5305-01-617-0403 is 5305

Does the NSN 5305-01-617-0403 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-617-0403 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 5305-01-617-0403 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-617-0403 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 5305-01-617-0403 was assigned to the Federal Catalog?

It was assigned 13 years ago, on Thu, Mar 7, 2013