5305-00-256-8409

Find complete technical information, availability, and procurement data for: 5305-00-256-8409
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-00-256-8409

Item Name Code

16282

Assigment Date

06/20/1973 (53 years ago)

An insulator designed to fit into and reduce the effective diameter of the hole(s). It may include mounting and/or conducting hardware. For flexible bushing-type insulators that are self-retaining and consist of two facing flanges separated by a neck, see grommet, nonmetallic. Also see spacer, sleeve and bushing, sleeve. Excludes:insulation sleeving, electrical.

3a thread class, 0.670 inches minimum and 0.750 inches maximum thread length, 0.720 inches minimum and 0.750 inches maximum fastener length, flat chamfer head style, 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: 3a
Thread Direction: right-hand
Thread Length: 0.670 inches minimum and 0.750 inches maximum
Fastener Length: 0.720 inches minimum and 0.750 inches maximum
Head Style: flat chamfer
Head Diameter: 0.218 inches minimum and 0.226 inches maximum
Head Height: 0.134 inches minimum and 0.138 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.138 inches
Width Across Flats: 0.109 inches minimum and 0.111 inches maximum
Thread Quantity Per Inch: 40
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 36.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength: 155000 pounds per square inch
Material: steel overall
Material Document And Classification: 66 fed std single material response overall
Surface Treatment: oxide overall
Surface Treatment Document And Classification: mil-c-13924,cl 1 mil spec single treatment response overall
Thread Series Designator: unrf
Specification/Standard Data: 80205-nas1351 professional/industrial association standard

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
NAS1351-06-12	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-00-256-8409?

The FSCG of the NSN 5305-00-256-8409 is 5305

Does the NSN 5305-00-256-8409 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-00-256-8409 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 5305-00-256-8409 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-00-256-8409 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 5305-00-256-8409 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Wed, Jun 20, 1973