5305-01-321-3570

Find complete technical information, availability, and procurement data for: 5305-01-321-3570
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-321-3570

Item Name Code

16282

Assigment Date

06/16/1990 (36 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.

flat chamfer head style, right-hand thread direction, 3a thread class, 10.985 inches minimum and 11.125 inches maximum fastener length, 2.250 inches minimum thread length

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: 2.250 inches minimum
Fastener Length: 10.985 inches minimum and 11.125 inches maximum
Head Style: flat chamfer
Head Diameter: 1.293 inches minimum and 1.312 inches maximum
Head Height: 0.864 inches minimum and 0.875 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.875 inches
Width Across Flats: 0.750 inches minimum and 0.757 inches maximum
Thread Quantity Per Inch: 14
Minimum Tensile Strength: 160000 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 45.0 rockwell c maximum overall
Material: iron alloy 660 overall
Material Document And Classification: ams 5731 assn std single material response or ams 5737 assn std single material response overall
Precious Material And Location: overall silver
Precious Material: silver
Surface Treatment: silver overall
Surface Treatment Document And Classification: ams 2411 assn std single treatment response overall
Thread Series Designator: unrf
Specification/Standard Data: 80205-nas1351 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
NAS1351N14-180S	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-321-3570?

The FSCG of the NSN 5305-01-321-3570 is 5305

Does the NSN 5305-01-321-3570 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-321-3570 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 5305-01-321-3570 contain precious materials?

Item contains silver.

Does NSN 5305-01-321-3570 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 5305-01-321-3570 was assigned to the Federal Catalog?

It was assigned 36 years ago, on Sat, Jun 16, 1990