5305-01-266-8564

Find complete technical information, availability, and procurement data for: 5305-01-266-8564
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-266-8564

Item Name Code

16282

Assigment Date

10/31/1987 (38 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.

3a thread class, 0.399 inches minimum and 0.500 inches maximum thread length, 0.470 inches minimum and 0.500 inches maximum fastener length, right-hand thread direction, flat chamfer 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: 0.399 inches minimum and 0.500 inches maximum
Fastener Length: 0.470 inches minimum and 0.500 inches maximum
Head Style: flat chamfer
Head Diameter: 0.365 inches minimum and 0.375 inches maximum
Head Height: 0.244 inches minimum and 0.250 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.250 inches
Width Across Flats: 0.188 inches nominal
Thread Quantity Per Inch: 28
Minimum Tensile Strength: 180000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 45.0 rockwell c maximum overall
Minimum Yield Strength: 155000 pounds per square inch
Part Name Assigned By Controlling Agency: screw,cap,socket head
Material: steel comp 4340 overall
Material Document And Classification: astm a574 assn std single material response overall
Thread Series Designator: unf
Nondefinitive Spec/Std Data: 2 type

FAQs

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

What is the FSCG of the NSN 5305-01-266-8564?

The FSCG of the NSN 5305-01-266-8564 is 5305

Does the NSN 5305-01-266-8564 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-266-8564 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 5305-01-266-8564 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-266-8564 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 5305-01-266-8564 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Sat, Oct 31, 1987