5305-01-266-7790

Find complete technical information, availability, and procurement data for: 5305-01-266-7790
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-266-7790

Item Name Code

06672

Assigment Date

10/30/1987 (38 years ago)

An externally threaded fastener whose external threaded portion is of one nominal diameter. It has a concentric hole along the longitudinal centerline which may extend a part or the full length of the bolt. The concentric hole along the centerline may be counterbored and/or internally threaded at the head end or the bolt end. The head is designed to be held or driven by an external and/or internal driver. For items having a hole(s) perpendicular to the axis which meet the concentric hole along the longitudinal centerline, see bolt, fluid passage.

0.500 inches nominal fastener length, headless (setscrew) head style, 0.389 inches minimum and 0.500 inches maximum thread 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: 0.389 inches minimum and 0.500 inches maximum
Fastener Length: 0.500 inches nominal
Head Style: headless (setscrew)
Point Style: flat
Internal Drive Style: slot
Nominal Thread Diameter: 0.625 inches
Thread Quantity Per Inch: 18
Special Features: counterbore hole 0.625 in. nom lg; 0.359 in. nom dia and 0.250 in dia
Material: aluminum alloy 6061 or aluminum alloy 1100 overall
Material Document And Classification: qq-a-225/1 temp t6 fed spec 1st material response overall
Surface Treatment: chromate overall
Surface Treatment Document And Classification: mil-c-81706 cl 1a mil spec 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
478253	Setscrew

FAQs

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

What is the FSCG of the NSN 5305-01-266-7790?

The FSCG of the NSN 5305-01-266-7790 is 5305

Does the NSN 5305-01-266-7790 have a Schedule B code assigned?

Yes, the Schedule B code is 7616106000

Does NSN 5305-01-266-7790 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 5305-01-266-7790 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-266-7790 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 5305-01-266-7790 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Fri, Oct 30, 1987