9431663

View detailed technical data, stock status, and sourcing information for: 9431663
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-157-7388

Item Name Code

06660

Assigment Date

07/11/1983 (43 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.

pan head style, 0.720 inches minimum and 0.750 inches maximum fastener length, 0.578 inches minimum and 0.682 inches maximum thread length, 3a 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: 3a
Thread Direction: right-hand
Thread Length: 0.578 inches minimum and 0.682 inches maximum
Fastener Length: 0.720 inches minimum and 0.750 inches maximum
Head Style: pan
Head Diameter: 0.594 inches minimum and 0.615 inches maximum
Head Height: 0.203 inches minimum and 0.218 inches maximum
Washer Quantity: 1
Internal Drive Style: cross recess type 1
Nominal Thread Diameter: 0.312 inches
Thread Quantity Per Inch: 18
Hardness Rating: 44.0 rockwell c minimum and 48.0 rockwell c maximum primary washer
Primary Washer Outside Diameter: 0.620 inches minimum and 0.640 inches maximum
Primary Washer Style: spring tension
Primary Washer Material Thickness: 0.052 inches minimum and 0.060 inches maximum
Material Document And Classification: sae assn std all material responses primary washer
Material Document And Classification: sae assn std all material responses fastener
Surface Treatment: zinc overall
Surface Treatment Document And Classification: g-4342-m,code 20u32,fscm 11862 mfr ref single treatment response overall
Thread Series Designator: unrc

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
9431663	Assembled Washer Screw

FAQs

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

What is the FSCG of the NSN 5305-01-157-7388?

The FSCG of the NSN 5305-01-157-7388 is 5305

Does NSN 5305-01-157-7388 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 5305-01-157-7388 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-157-7388 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 5305-01-157-7388 was assigned to the Federal Catalog?

It was assigned 43 years ago, on Mon, Jul 11, 1983