5305-01-231-1298

Find complete technical information, availability, and procurement data for: 5305-01-231-1298
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-231-1298

Item Name Code

41756

Assigment Date

04/23/1986 (40 years ago)

hexagon extended washer head style, 0.244 inches minimum and 0.250 inches maximum width between flats, 0.322 inches minimum and 0.348 inches maximum extended washer diameter, 0.984 inches minimum and 1.016 inches maximum fastener length, 0.115 inches minimum and 0.160 inches maximum head height

Product Characteristics

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

Fastener Length: 0.984 inches minimum and 1.016 inches maximum
Head Style: hexagon extended washer
Head Height: 0.115 inches minimum and 0.160 inches maximum
Width Between Flats: 0.244 inches minimum and 0.250 inches maximum
Extended Washer Diameter: 0.322 inches minimum and 0.348 inches maximum
Extended Washer Thickness: 0.019 inches minimum and 0.050 inches maximum
Internal Drive Style: w/o internal drive
Features Provided: casehardened
Hardness Rating: 80.0 rockwell b minimum and 107.0 rockwell b maximum overall
Nonmachine Thread Style: dog type (type b or c)
Nonmachine Nominal Thread Diameter: 0.164 inches
Material: steel overall
Material Document And Classification: g-6010-m fscm 24617 mfr ref single material response overall
Surface Treatment: phosphate overall
Surface Treatment Document And Classification: g-4435-m fscm 24617 mfr ref single treatment response overall

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-01-163-5749	No Name Available	09/01/1991

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
1640810	Tapping Screw
9423010	Tapping Screw

FAQs

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

What is the FSCG of the NSN 5305-01-231-1298?

The FSCG of the NSN 5305-01-231-1298 is 5305

Does the NSN 5305-01-231-1298 have a Schedule B code assigned?

Yes, the Schedule B code is 7318140000

Does NSN 5305-01-231-1298 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 5305-01-231-1298 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-231-1298 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 5305-01-231-1298 was assigned to the Federal Catalog?

It was assigned 40 years ago, on Wed, Apr 23, 1986