5305-01-442-7731

Find complete technical information, availability, and procurement data for: 5305-01-442-7731
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-442-7731

Item Name Code

22846

Assigment Date

03/24/1997 (29 years ago)

A washer, round in shape, and having a centrally located hole. One bearing surface is flat and unbroken, the other surface is in the form of a raised shoulder (boss) having a flat bearing surface. The thickness of the shoulder (boss) must not exceed 25 percent of the shoulder (boss) diameter. For items having a shoulder (boss) of greater thickness, use bearing, sleeve; bushing sleeve; or spacer, sleeve. Excludes:insulator, washer and thrust type washers.

0.500 inches nominal thread length, right-hand thread direction, 3a thread class, flat chamfer head style, 0.495 inches minimum and 0.500 inches maximum 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: 0.500 inches nominal
Fastener Length: 0.495 inches minimum and 0.500 inches maximum
Head Style: flat chamfer
Head Diameter: 0.543 inches minimum and 0.562 inches maximum
Head Height: 0.240 inches minimum and 0.250 inches maximum
Shoulder Diameter: 0.375 inches nominal first shoulder
Shoulder Length: 0.495 inches minimum and 0.505 inches maximum first shoulder
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.312 inches
Width Across Flats: 0.188 inches nominal
Thread Quantity Per Inch: 18
Minimum Tensile Strength: 140000 pounds per square inch
Hardness Rating: 32.0 rockwell c minimum and 43.0 rockwell c maximum overall
Shoulder Shape: round first shoulder
Material: steel 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
211048106	Shoulder Screw
752-6405276-86	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-442-7731?

The FSCG of the NSN 5305-01-442-7731 is 5305

Does the NSN 5305-01-442-7731 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-442-7731 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 5305-01-442-7731 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-442-7731 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 5305-01-442-7731 was assigned to the Federal Catalog?

It was assigned 29 years ago, on Mon, Mar 24, 1997