5305-01-159-9391

Find complete technical information, availability, and procurement data for: 5305-01-159-9391
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-159-9391

Item Name Code

06660

Assigment Date

08/15/1983 (42 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.

0.293 inches minimum and 0.375 inches maximum thread length, 0.343 inches minimum and 0.375 inches maximum fastener length, pan no. 2 head style, right-hand thread direction, 2a thread class

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: 0.293 inches minimum and 0.375 inches maximum
Fastener Length: 0.343 inches minimum and 0.375 inches maximum
Head Style: pan no. 2
Head Diameter: 0.205 inches minimum and 0.219 inches maximum
Head Height: 0.058 inches minimum and 0.068 inches maximum
Washer Quantity: 2
Internal Drive Style: slot
Nominal Thread Diameter: 0.112 inches
Thread Quantity Per Inch: 40
Minimum Tensile Strength: 55000 pounds per square inch
Secondary Washer Relationship To Primary Washer: not identical
Secondary Washer Style: flat
Primary Washer Outside Diameter: 0.209 inches maximum
Secondary Washer Outside Diameter: 0.213 inches minimum and 0.223 inches maximum
Primary Washer Style: split helical ring
Primary Washer Material Thickness: 0.025 inches minimum and 0.031 inches maximum
Secondary Washer Material Thickness: 0.013 inches minimum and 0.019 inches maximum
Material: copper alloy 510 primary washer
Material: copper alloy 260 or copper alloy 268 secondary washer
Material: copper alloy fastener
Material Document And Classification: qq-b-750 fed spec single material response primary washer
Material Document And Classification: qq-b-613 fed spec all material responses secondary washer
Material Document And Classification: qq-b-613 fed spec single material response or qq-b-626 fed spec single material response fastener
Surface Treatment: nickel overall
Surface Treatment Document And Classification: qq-n-290 fed spec single treatment response overall
Thread Series Designator: unc
Specification/Standard Data: 80205-nas720 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
4177217-3	Assembled Washer Screw
NAS720B4-6	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-01-159-9391?

The FSCG of the NSN 5305-01-159-9391 is 5305

Does the NSN 5305-01-159-9391 have a Schedule B code assigned?

Yes, the Schedule B code is 7415338550

Does NSN 5305-01-159-9391 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 5305-01-159-9391 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-159-9391 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 5305-01-159-9391 was assigned to the Federal Catalog?

It was assigned 42 years ago, on Mon, Aug 15, 1983