0N017758

View detailed technical data, stock status, and sourcing information for: 0N017758
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-978-7943

Item Name Code

01852

Assigment Date

10/14/1966 (59 years ago)

right-hand thread direction, 2a thread class, fillister head style, 0.178 inches minimum and 0.198 inches maximum thread length, 0.734 inches minimum and 0.766 inches maximum fastener 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: 0.178 inches minimum and 0.198 inches maximum
Fastener Length: 0.734 inches minimum and 0.766 inches maximum
Head Style: fillister
Head Diameter: 0.250 inches minimum and 0.270 inches maximum
Head Height: 0.102 inches nominal
First Diameter From Head: 0.115 inches minimum and 0.125 inches maximum
Distance From Largest Bearing Surface Of Head To End Of First Diameter: 0.532 inches minimum and 0.552 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.164 inches
Thread Quantity Per Inch: 32
Externally Relieved Body Diameter Quantity: 1
Material: steel comp 303 or steel comp 303 plus x or steel comp 303ma or steel comp 303se overall
Material Document And Classification: astm a581 assn std all material responses overall
Surface Treatment: passivate overall
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-00-009-7716	No Name Available	02/24/1973

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
0N017758	Externally Relieved Body Screw
290-023-0004	Externally Relieved Body Screw
610074P23	Externally Relieved Body Screw
6238SS0832-7	Externally Relieved Body Screw
P44F734	Externally Relieved Body Screw

FAQs

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

What is the FSCG of the NSN 5305-00-978-7943?

The FSCG of the NSN 5305-00-978-7943 is 5305

Does the NSN 5305-00-978-7943 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-978-7943 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 5305-00-978-7943 contain precious materials?

Precious metal content is unknown

Does NSN 5305-00-978-7943 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 5305-00-978-7943 was assigned to the Federal Catalog?

It was assigned 59 years ago, on Fri, Oct 14, 1966