5305-01-291-6608

Find complete technical information, availability, and procurement data for: 5305-01-291-6608
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-291-6608

Item Name Code

06657

Assigment Date

01/03/1989 (37 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter. The head has an internal socket or multiple spline for use with an inserted driver. A locking feature may be incorporated in the design of the head or threads. Excludes:items with bevel (conical) heads. See bolt, internal wrenching. Excludes:screw, shoulder; and screw, machine.

3.720 inches minimum and 3.750 inches maximum fastener length, right-hand thread direction, 3.648 inches minimum and 3.721 inches maximum thread length, 2a thread class, flat countersunk head style

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: 3.648 inches minimum and 3.721 inches maximum
Fastener Length: 3.720 inches minimum and 3.750 inches maximum
Head Style: flat countersunk
Head Diameter: 0.143 inches minimum and 0.172 inches maximum
Internal Drive Style: slot
Nominal Thread Diameter: 0.086 inches
Thread Quantity Per Inch: 56
Countersink Angle: 99.0 degrees minimum and 101.0 degrees maximum
Screw Material: steel comp 303 or steel comp 302
Screw Material Document And Classification: astm a582 assn std 1st material response or mil-s-7720 mil spec 2nd material response
Screw Surface Treatment: passivate
Screw Surface Treatment Document And Classification: qq-p-35 fed spec single treatment response
Thread Series Designator: unc
Specification/Standard Data: 80205-nas662 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
NAS662C2-60	Machine Screw

FAQs

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

What is the FSCG of the NSN 5305-01-291-6608?

The FSCG of the NSN 5305-01-291-6608 is 5305

Does the NSN 5305-01-291-6608 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-291-6608 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 5305-01-291-6608 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-291-6608 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 5305-01-291-6608 was assigned to the Federal Catalog?

It was assigned 37 years ago, on Tue, Jan 3, 1989