5305-01-657-3388

Find complete technical information, availability, and procurement data for: 5305-01-657-3388
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-657-3388

Item Name Code

16282

Assigment Date

08/08/2016 (9 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.

0.625 inches nominal fastener length, right-hand thread direction, 3a thread class, 0.625 inches nominal thread length, 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: 3a
Thread Direction: right-hand
Thread Length: 0.625 inches nominal
Fastener Length: 0.625 inches nominal
Head Style: flat countersunk
Head Diameter: 0.411 inches nominal
Internal Drive Style: hexagon
End Item Identification: kc-46a support equipment
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 32
Minimum Tensile Strength: 120000 pounds per square inch
Hardness Rating: 32.0 rockwell c nominal overall
Countersink Angle: 82.0 degrees nominal
Part Name Assigned By Controlling Agency: alloy steel flat-head socket cap screws
Material: steel corrosion resisting overall
Material Document And Classification: astm f835 government std/spec single material response overall
Surface Treatment: zinc overall
Thread Series Designator: unf

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
91263A543	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-657-3388?

The FSCG of the NSN 5305-01-657-3388 is 5305

Does the NSN 5305-01-657-3388 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-657-3388 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 5305-01-657-3388 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-657-3388 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 5305-01-657-3388 was assigned to the Federal Catalog?

It was assigned 9 years ago, on Mon, Aug 8, 2016