5305-01-321-3572

Find complete technical information, availability, and procurement data for: 5305-01-321-3572
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-321-3572

Item Name Code

16282

Assigment Date

06/16/1990 (36 years ago)

An externally threaded fastener whose threaded portion is of one nominal diameter, no 0 (0.060 in.) (1.5 mm) or larger. It has a round unthreaded neck or shank all or part of which is of greater diameter than the threaded portion. The head is designed to be driven with either a wrench or an inserted driver or both in sizes below no. 10 (0.190 in.) (5 mm) nominal diameter. No. 10 (0.190 in.) (5 mm) and larger sizes must be designed for any type of inserted driver, but may also provide for external wrenching of the head. A locking feature may be incorporated in the design of the head or threads. For items which are both shouldered and have an externally relieved body, use screw, externally relieved body. For items with a no. 10 (0.190 in.) (5 mm) or larger thread diameter without an inserted driver head, use bolt, shoulder. Excludes:bolt, internal wrenching and screw, cap, socket head.

3a thread class, flat chamfer head style, right-hand thread direction, 2.000 inches nominal thread length, 4.750 inches nominal fastener 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: 2.000 inches nominal
Fastener Length: 4.750 inches nominal
Head Style: flat chamfer
Head Diameter: 0.642 inches minimum and 0.656 inches maximum
Head Height: 0.430 inches minimum and 0.437 inches maximum
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.438 inches
Width Across Flats: 0.375 inches minimum and 0.379 inches maximum
Thread Quantity Per Inch: 14
Minimum Tensile Strength: 16700 pounds per square inch
Hardness Rating: 39.0 rockwell c minimum and 45.0 rockwell c maximum overall
Material: steel overall
Surface Treatment: cadmium and chromate overall
Surface Treatment Document And Classification: qq-p-416,ty2 cl3 fed spec single treatment response overall
Thread Series Designator: unc

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
20097-7C-76D	Socket Head Cap Screw
84000779-001	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-321-3572?

The FSCG of the NSN 5305-01-321-3572 is 5305

Does the NSN 5305-01-321-3572 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-321-3572 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 5305-01-321-3572 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-321-3572 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 5305-01-321-3572 was assigned to the Federal Catalog?

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