ADB-31015

View detailed technical data, stock status, and sourcing information for: ADB-31015
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-266-9357

Item Name Code

22846

Assigment Date

11/03/1987 (38 years ago)

An externally threaded fastener whose unthreaded portion is of a specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001) of an inch (0.025 mm) or less of a specific diameter for items one inch (25 mm) or less in diameter. Items over one inch (25 mm) in diameter shall have a tolerance of fifteen ten-thousandths (0.0015) of an inch (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001) of an inch (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the screw thread standards, fed std h28 and/or other nationally recognized standards. The head is not designed to be held or driven with an inserted driver, nor is it designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads. For items having close tolerance, and fabricated from material having 160,000 pounds per square inch (1100 megapascals) minimum tensile strength, see bolt, shear. For items fabricated from material having less than 160,000 pounds per square inch (1100 megapascals) minimum tensile strength and not having a close tolerance, see bolt, machine.

1.000 inches minimum and 1.005 inches maximum fastener length, 2a thread class, right-hand thread direction, flat chamfer head style, 0.292 inches nominal 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: 2a
Thread Direction: right-hand
Thread Length: 0.292 inches nominal
Fastener Length: 1.000 inches minimum and 1.005 inches maximum
Head Style: flat chamfer
Head Diameter: 0.375 inches nominal
Head Height: 0.188 inches nominal
Shoulder Diameter: 0.249 inches minimum and 0.250 inches maximum first shoulder
Shoulder Length: 0.625 inches minimum and 0.630 inches maximum first shoulder
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.190 inches
Width Across Flats: 0.125 inches nominal
Thread Quantity Per Inch: 24
Shoulder Shape: round first shoulder
Color: black overall
Material: steel overall
Surface Treatment: oxide overall
Thread Series Designator: unc

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
5305-01-216-7379	No Name Available	04/01/1990

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
ADB-31015	Shoulder Screw
CL-37-SS	Shoulder Screw

FAQs

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

What is the FSCG of the NSN 5305-01-266-9357?

The FSCG of the NSN 5305-01-266-9357 is 5305

Does the NSN 5305-01-266-9357 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-266-9357 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 5305-01-266-9357 contain precious materials?

Item does not contain precious metal.

Does NSN 5305-01-266-9357 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 5305-01-266-9357 was assigned to the Federal Catalog?

It was assigned 38 years ago, on Tue, Nov 3, 1987