A320A254-203

View detailed technical data, stock status, and sourcing information for: A320A254-203
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Federal Supply Group

Hardware and Abrasives

Federal Supply Classification

5305 Screws

National Stock Number

5305-01-071-4590

Item Name Code

16282

Assigment Date

02/08/1979 (47 years ago)

right-hand thread direction, 3a thread class, flat chamfer head style, 0.173 inches minimum and 0.203 inches maximum fastener length, 0.137 inches minimum and 0.203 inches maximum 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: 0.137 inches minimum and 0.203 inches maximum
Fastener Length: 0.173 inches minimum and 0.203 inches maximum
Head Style: flat chamfer
Head Diameter: 0.134 inches minimum and 0.140 inches maximum
Head Height: 0.083 inches minimum and 0.086 inches maximum
Locking Feature: strip threads
Internal Drive Style: hexagon
Nominal Thread Diameter: 0.086 inches
Width Across Flats: 0.078 inches minimum and 0.079 inches maximum
Thread Quantity Per Inch: 56
Material: steel comp 302 or steel comp 303 or steel comp 304 or steel comp 305 overall
Material Document And Classification: 66 fed std all material responses overall
Surface Treatment: oxide overall
Surface Treatment Document And Classification: mil-c-13924 cl 2 or cl 4 mil 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
A320A254-203	Socket Head Cap Screw

FAQs

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

What is the FSCG of the NSN 5305-01-071-4590?

The FSCG of the NSN 5305-01-071-4590 is 5305

Does the NSN 5305-01-071-4590 have a Schedule B code assigned?

Yes, the Schedule B code is 7318152000

Does NSN 5305-01-071-4590 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 5305-01-071-4590 contain precious materials?

Precious metal content is unknown

Does NSN 5305-01-071-4590 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 5305-01-071-4590 was assigned to the Federal Catalog?

It was assigned 47 years ago, on Thu, Feb 8, 1979