5305-01-658-4341

Find complete technical information, availability, and procurement data for: 5305-01-658-4341
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-658-4341

Item Name Code

18257

Assigment Date

09/27/2016 (9 years ago)

A tube fitting with external threads other than pipe or hose series having an internal or external seating surface. The seating surface is designed to form a seal when mated with other tube fittings to retain fluids under pressure during equipment operation. For items without a specific seating surface which are designed to utilize a gasket or packing under the head for forming a seal, see plug, machine thread.

hexagon head style, 1.000 inches nominal thread length, 1.000 inches nominal fastener length, 2a thread class, right-hand thread direction

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: 1.000 inches nominal
Fastener Length: 1.000 inches nominal
Head Style: hexagon
Head Height: 0.163 inches maximum
Width Between Flats: 0.440 inches maximum
Nominal Thread Diameter: 0.250 inches
Features Provided: o ring
Thread Quantity Per Inch: 20
Part Name Assigned By Controlling Agency: cap screw
Special Features: self-sealing
Material: rubber silicone class q ring
Material: steel corrosion resisting fastener
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
ST1/4-20X1 2701	Hexagon Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-658-4341?

The FSCG of the NSN 5305-01-658-4341 is 5305

Does the NSN 5305-01-658-4341 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-658-4341 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 5305-01-658-4341 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-658-4341 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 5305-01-658-4341 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Tue, Sep 27, 2016